So, I've joined a gym. I have never been to a gym before and now I'm faced with not only the gym but the classes too. I'm massively overweight but ready to give things a try. I'm a total beginner. I don't know what half the classes are, never mind how to do them or whether I'd be any good at it.
Where should I start?? I'm really shy too so going into a class would be hell for me, but I'll get over it quickly enough.