Hey thanks for the rersponses!
Good point about the BUT's (excuses/justifications/rationalisations), I'll look out for it.
I found a resource which uncovered many limiting beliefs and for various things the same limiting beliefs cropped up.
Also I got to look at it objectively by using someone else (imaginary, doll etc), listing all undesireable experiences then asking "what would some of the beliefs have to be for this undesireable experience."
This is what I'm using, it's helping me out quite a bit:
untitled