Then you need to enlist the help of a friend who does not work during those hours. Somebody who could show up on time and to whom you would be accountable. Sabotaging happens when a person is insufficiently accountable to herself (which is more than understandable), so one of the ways to solve this problem is to designate a person who would hold you accountable. Like a designated driver

Do you have somebody who could help? Maybe mental health peer volunteers could provide this as a free service. County clinics have peer support.

If that is completely not feasible, you can be accountable by agreeing to call a friend before and after the interview. If all else fails, make a commitment on this board and report to the thread when you come back from the interview.

Feeling horrible about yourself due to sabotaging is counterproductive and useless - treat it as a solvable problem and not a guilt-increasing bad habit.