I would stick with the stricter discipline of Ballet. At least for now. You know, you simply could be in a slump, a plateau of sorts before breaking away from it, rising above it. That is the way for many disciplines; someone reaches a point where they feel they're doing nothing but the same thing over and over again. But, that is a dangerous thing to feel! It is sometimes a turning point as to whether someone is going to continue, stick it out or....take a break, which can lead to the cessation of it entirely.
I do hope you stay with the Ballet classes you're taking now.
Good luck though, in your decision.[/i]