Follow everybody's advice above me

but also, dont let inflexibility stop u from doing gymnastics!
I wasnt flexible at all when i started a couple months ago (and Im still not), but it gets better over time, and there are plenty of things that you can do that don't involve extreme flexibility when you are starting
That doesnt mean that once you start, you shouldnt work on flexibility, but u dont have to wait until you are really flexible to do start
=D