It's fine. There's some saying about people changing careers an average of 10 times or something. You were active and involved. That's what counts. Don't worry.
Yeah, big time. I still haven't had a breakthrough with those questions, but here is a discussion post of mine that some peeps contributed awesome advice on: https://7sage.com/discussion/#/discussion/18354/life-changing-rc-tips-help-me-friends