Hi Strength18...
You know what I myself am guilty of the "I should have..." statements. For example I say "Oh maybe I should have said this instead of that, or maybe I should have done that instead of this". Instead I need to focus more on, the positive things that came from doing the things that have happened or the way things were done. Afterall we can't change the past.
I also noticed that I have negative thoughts when it comes to what I think other people think of me. Sometimes, and for no reason at all, I think people don't like me. I know it's a bit silly and childish but I can't help it...if someone doesn't say hello to me at work in the morning for example, I'll assume that I did something to bother them and they are mad at me. Instead I think I am going to come up with other reasons taht do not necessarily put this blame on me...
How about the others, how has session 4 been for you?