I've gone through periods of depression where I excessively apologize for my being in the way and not doing things better. Friends often told me that I was apologizing too much.

Other times, I should have apologized and didn't and I regretted it later.

Since being in an 12 Step program, I try to apologize and make amends promptly for stuff that I have done that hurts others. "Crow is best eaten fresh!" This seems to clear the air a lot better, especially in friendships, and I also sleep better.