Great lessons.
Somehow along the way you seem to have missed the biggest mistake of all - chasing too many things. I am an ideas person - I have more unfinished projects than one can shake a stick at.
Good news is there is one thing I am really good at and it does not require a lot of the things you wrote about - investing works for me. Maybe it is time to can all the other projects and just do that.
You can read all about the investing stuff - just search on here for #tib and @carrinm - 676 investing posts written so far