'So much has happened': Simone Biles details her struggle to get back to top form in the gym as she sets her sights on Tokyo 2020, months after coming forward as a victim of pedophile Larry Nassar

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Olympic gymnastics champion and Rio 2016 sensation Simone Biles has only been back in the gym for a few months, but she's got her sights set on even greater medal success in Tokyo in 2020.

The talented athlete is the subject of a new video by USA Gymnastics, which shows that the 21-year-old is already back to form and in the thick of training as she prepares to make her comeback to the sport after taking more than a year off to travel and spend time with her family.

In the clip, Simone addresses her hotly-anticipated return to competition, admitting that, while others may have been eagerly awaiting the next step of her career, she hasn't been thinking much about the Olympics because 'so much has happened since then'.

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Coming back: Simone Biles, 21, is already back to her Olympic shape in a new training video

Up and up: The gymnast is planning on making it back to competition before the Tokyo 2020 Olympic Games

But after spending her time travelling to places like Hawaii and Belize instead of hitting the gym, Simone has decided to return and shoot for the podium once again - citing 'messing up on the beam' at Rio as one of her reasons. 

Aside from that, she says, the 'one reason I would want to try and come back is that years from now, 20 years from now maybe, when I have kids and all that, I never want to think back and say, "Wow, I wish I would have tried."'

Abuse: In January, Simone revealed that she had been a victim of pedophile doctor Larry Nassar (pictured)

Coming back can't have been an easy decision for Simone, particularly in the midst of the Larry Nassar abuse scandal, which saw Simone come forward to reveal that she had been abused by the pedophile doctor during her time on the US National Team. 

Simone came forward on social media to reveal that she had been a victim of Nassar, sharing a powerful personal statement about how she had tried to deal with the abuse. 

'Most of you know me as a happy, giggly and energetic girl. But lately...I've felt a bit broken and the more I try to shut off the voice in my head the louder it screams,' she wrote. 

She then shared that Nassar had also been sexually abusing her while she trained at the national facility in Texas.

'Please believe me when I say it was a lot harder to first speak those words out loud than it is now to put them on paper,' Simone explained. 'There are many reasons that I have been reluctant to share my story, but I now know it is not my fault.' 

Simone is one of more than 265 women who were molested or abused by the doctor; her Olympic teammates Aly Raisman and Gabby Douglas also shared similar statements, as did one of her closest friends, former national team member Maggie Nichols.

Thus far, Simone is the only member of the 2016 team who has returned to the gym. 

Fun and games: After Rio, Simone took off more than a year to go travelling with her family

Around the world: The Olympic champion saw everywhere from Hawaii to London during her travels

Back in the game: Since November, Simone has been back in the gym with her new coach Laurent Landi (pictured)

Up and over: Laurent opened up in the new video about Simone's bar routine, saying that he believes it will get her to the finals

But before getting there, her team had to hunt for a new coach, after Simone's long-time coach Aimee Boorman - the woman who worked with Simone for 17 years, and was one of the key forces helping to push her to Olympic success - left her gym in Houston in order to move to Florida.

Thankfully, however, Simone found a new perfect match in husband-and-wife team Laurent Landi and Cecile Canqueteau-Landi - both former members of the French national team - and has been back training full-time since November 2017.

The video includes plenty of footage from Simone in the gym, showing that the four-time Olympic champion certainly hasn't lost her touch. In fact, it's clear that she is already back to the form she displayed back in the summer of 2016.

She is seen hitting multiple skilled vaults including a difficult a triple twisting Yurchenko, which is of even higher difficulty than the one she performed in Rio. 

The gymnast also opened up about her insecurities going back into training, saying that she has a few 'ticks' in her bars routine that she is struggling to overcome. 

The uneven bars was the only event at Rio that Simone didn't make it to the finals for, however, Simone's new coach believes that he next time around, she will have a shot. 

'We found a good bar routine I think she can hit very well under pressure. I think she can score very well. I think it fits her and I think it can get her even to bars finals,' Laurent explains. 'I need her to believe that. I believe, now she needs to believe. 

Best there is: Simone cited a mistake during her balance beam routine at 2016 (which saw her place third) as a reason for her return

Going up: If she qualifies, Simone will go into Tokyo 2020 as the reigning vault, floor and all-around Olympic champion

'As we know on the other events, she knows she's good. She knows she can do it. On the bars she doesn't believe enough, so I try to help her believe.'

But that doesn't mean that it was easy for her to throw herself back into her routine in the gym - especially as she thought she would be able to enjoy a few easier days, before her new coach quickly proved otherwise. 

'In the beginning, I thought, on my very first day I would at least come in and do some conditioning, then leave... not be here six hours,' she joked. 

'Then I started conditioning, and [Laurent] was like, "OK, let's go on to events!"' 

And while Simone might seem fearless in her execution of her skills - which were, at the 2016 Olympics, among the most difficult being performed by any gymnast in the world - she confesses in the video to being 'terrified' about getting back into them - particularly the vault.

'I was telling Laurent, you know I have not run down a vault runway since my Olympic vault, and I'm like, "I'm terrified,"' she admitted, before going on to joke that her coach refused to allow her time to think about it, instead pushing her to attack the vault face on. 

Now, of course, it's not a problem for the pint-sized superstar, who has bigger - and better - things to worry about in the coming months and years, as both her fans, and her coaches, look ahead to the next Olympics. 

Simone admits that she believes the expectations at 2020 will be even tougher to deal with than they were at Rio, given that she has been so consistently successful in her previous competitions. 

'The nerves will be a lot scarier this time around,' she says. 'But hopefully if I can calm my nerves and compete like I trained, it should be good.' 

Should she stay healthy and qualify for Tokyo, she will enter the Games as the reigning champion in the vault, the floor exercise and the all-around competition as well as the team event alongside her fellow Team USA gymnasts.