I can in a way see repeating a learned pattern as self sabotaging, but in a way not. If you never were allowed to succeed or see your success it takes a lot of practice and insight to even understand your options. If you cannot deliberately succeed, I wonder if you can deliberately fail... But the pattern to failure is there so in a way it is meant, I guess.

I guess there two things are involved and maybe one more than the other. One being not understanding the process, once maybe thinking you do not deserve a good outcome...

Fear of success... why really? I guess there might be different reasons.