I know how you feel though. I was having a hard time with courses in college 5-10 years ago, would sign up then withdraw because I'd get scared of something or another. I started feeling bad about myself, that I would never be able to finish what I started or stick with things. It made me afraid I'd fail other things too that were especially important to me like therapy and life :-) I use to start a whole lot of projects, get lots of ideas of things to do (gardens, courses, book writing, cleaning/organizing) and then not follow-through. I can't tell you how many "fresh starts" at what I was going to do or "be" I've made. Very discouraging.

It worked its way out through therapy though; as hard as it was to "see" with the seemingly slow snails pace I was going at I did eventually coalesce into "me" and my plans got more practical and to my liking and I know what I'm "doing" now and am good for another 5+ years :-)