i'm glad you say quiting's not an option, because that's the only way you'll be able to get back to how you were, it's like thiagoleal said you just have to keep trying and grow your confidence level, it's kind of like when you first start riding. But you also said another good thing, that you know what you did wrong and since you corrected it you should try it out, just slowly push yourself and before you know it you'll be back to how you were if not better. i'm not saying it'll be easy because it's not and it is scary, bt like with most things practice can make perfect! Good Luck!
