I have to say that it's interesting to read a post from someone who says quite honestly that BA isn't really what s/he's looking for. I know loads of people try to join BA but then just because you get paid the best or wear the nicest uniform or serve the warmest hot towels or whatever, it doesn't mean it's for everyone.
I know some people who have joined airlines and have left as the crew are "too young" - in the end you have to find a place where you feel you fit in. I don't see its a problem that you don't enjoy BA - if you're not happy move, there's no point going to work dreading who you might have to work with!
Best of luck in finding a suitable replacement