You musn't give up after your first go! I did my first step class a couple of months ago. I have the co-ordination of a drunk chimpanzee. I hated it, felt very self conscience but I kept going back and bit by bit you pick up the routines. I still have the same experience when she introduces them but I live with it and just do my own thing if I don't pick it up easily. You have to remember that some of the people may have been going for months/years so of course they are going to know the routines. I really enjoy step now, even though I don't always 'get it.'