Albert Einstein did NOT say “Insanity is doing the same thing over and over again but expecting different results.”
A character in the 1983 Rita Mae Brown mystery Sudden Death uttered the phrase. You learn something new every day!
Whoever said it, we all tend to forget it (over and over again).
If you suffer from depression and repeatedly find yourself in situations that are frustrating and depressing, analyze why. What are you doing that isn't working?
Try to replace behaviors that no longer serve you with new inspirations and creative approaches.