Every day my brain is on the constant play and rewinds about things I regret or wish I did differently in regards to things that went wrong in my life. An honestly I feel this immense frustration that I cant just 1+1=2 the situation and solve it. The fact that I cant fix it or resolve it ruins me. Mainly because the outcome the I cant fix devasted me. this frustration is like constantly being on the brink of tired and the fact I can't turn my brain off to stop thinking about these things stops me sleeping or focusing on school or without even realizing ill stand in front of a mirror for an hour and talk to myself. It is honestly driving me crazy. I lost the love of my life 10 months ago and it hasn't left my mind since. From the moment I'm awake to the moment I sleep I am re-evaluating situations from our relationship, things she said, things I said, things I did wrong, what I could have done differently, looking at our old pictures because if I don't look and get a vivid image of what I was imagining it will bug me. In all honesty, I am losing my ability to cope with this. Its not just relationship stuff either. Covid ruined my plans and its the same thing with that or when I did bad on a test or missed a university application date. Can anybody help me? I don't know what to do anymore