It is difficult for any kind of performance art to rise to the level of mortal sexual sin, unless you are going at it to the extent of deliberately causing masturbation in yourself or others, or actually having sex.
(And if you’re a teenager or easily set off physiologically, you could be doing nothing and get set off in the first way. Hormones, sheesh.)
OTOH, venial sin should also be avoided. And there’s no reason why you can’t dance athletically and rhythmically, while also acting virtuously and with self-control. Respect yourself, others, and God while you dance, and you will have artistic and moral integrity. If you don’t respect yourself or God, you will have trouble with keeping proper boundaries, both in art and life.
So have fun, but just don’t form bad habits in yourself or others. It’s not supposed to be rocket science, even though it may be harder in today’s society.