Good advice from dadtwogirls. I agree you should do activities that you like, don’t do activities thinking it will look good for college (not that you said that, but sometimes that consideration is in peoples’ minds.)
You are also at the age where you will have to start making hard choices about how you spend your limited free time. Knowing that you can’t do everything you are interested in is part of the battle and part of growing up.
Prioritize your activities the best you can, according to whatever set of factors are most important to you. You can do that by creating a pros/cons list or whatever tool works for you. Also know that nothing you choose today/this year is permanent. If you ultimately decide FTC isn’t right for you, it’s ok to drop it and do something else.