If it's any comfort, my own compositions thus far run into the hundreds, and I couldn't even sit down now and play half of them without re-learning 'em from the recordings- and I'm only in my twenties! But maybe that's for the best- just hold on to the very best from your artistic past and keep looking to the future. (although in my case, I've spent most of my leisure time in the last few months learning new traditional songs...perhaps there's a lesson there?)