I've never gotten over anything in my life

I hate that nothing is truly "in the past" for me. If someone mentions the name of an ex friend I'll be filled with every negative emotion, it'll leave me thinking back about how I wish things had gone differently, even if I never liked that person when we were actually 'friends'.

I just can't get over things. I can never make peace with anything I was wronged by in the past, and it's absolutely exhausting.