Hmm
As the dog from adventure time said, sucking at something is the first step to being sorta good at something. (You probably don't actually suck, it's just going to look that way in the beginning.)
For me it's way too hard to stop worrying and think positive, so instead of trying to get rid of the concerns i kinda try to accept them and give myself a vague plan for it. (Like if this part fails it will take 3 months to catch up again, or if everything catastrophically fails it will take a year at a normal job to be out of debt again, etc)
