I'm sorry if it was posted earlier but how much did you pay for your current bow? Did the pro shop offer to take it back? I would try to get them to give you at least 80% of what you paid. It would be nice if they gave you 100% back since they are the ones that fitted it to you in the first place but I doubt that will happen.

Anyway, get the bow that fits. Like I said earlier, 3-4 weeks of practice with a bow that fits you and good form is better than trying to make your current bow work.