That hits close to home. I was cleaning my drive recently and I have a folder of completed projects ( which has few items ) and various random stuff that I briefly found interesting over the course of the years ( and then just gave up as soon as something else caught my attention or got bored.. you know the drill ).

Some of it helped me a little ( that is partially how I learned basics of R ), but I fear that it also held me back as I never really finished any of the more amusing projects and did not experience that feeling of finishing something.

And as you get older, it is harder to expose yourself to that scrutiny.