Kicking my butt

So.. I have now been going to Gold's gym since Jan. Now I haven't really gotten myself into a real routine yet. With puppies, dog shows , weather, it has really been pretty hit and miss. But I can now say that I have tried all the classes and they ALL KICK MY BUTT.. There is not one easy class that I can say,, "Oh I really like this one". They all make me feel like I am going to die. And the worst part of it, the other people in the class, don't seem to be reacting like me. They cheer and clap like this is fun. Are you kidding me? What is fun about almost falling off your ball or step and nearly breaking your ankle. Or doing billions of squats, lunges, push ups, jumping jacks. This is not fun, this is torture. But there is one class that I haven't tried yet and I am tempted. It may be right up my alley.. I am reluctant though, because if I can't master this one and if I am the only one that struggles I may just have to throw in the towel. It is called "Silver and Fit" If this kicks my butt, than what?