Cemlyn-Jones, who is a member of the Falcons Academy in Barnstaple, was always destined for high achievement having represented Great Britain since the age of 11.
The Welsh squad member has been successful at the London Open, UK School Games, English championships, German Bundesliga and the World Cup.
But achieving such success and getting to the required physical level takes enormous sacrifices and hard work - especially when competing against some of the strongest athletes on the planet.
“It was the longest process of my life getting to the level of being a professional gymnast,” he says.
“You come in one day and you will feel so strong and you’ll be able to do everything. But you’ll come in the next day and you won’t be able to do it.
“The key is persistence. You’ve just got to keep going because if you feel good every day and you aren’t doing much you aren’t going to progress.
“I train Monday to Saturday. I typically do a double session every day with Wednesday being half a day. I do a weights gym on Wednesday and a weights gym on Saturday.
“I do three hours in the morning, have a break and then I do two hours in the afternoon - focusing on repairs or anything which went wrong in the morning.
“In the build up to competitions I will try to do all six apparatus in the first session and then in the second sessions we don’t do too much.
“There’s some big sacrifices along the way and you don’t have much of a social life because of the commitment you need to get to this level.”