everything i see, everything i do, reminds me of people. reminds me of why those people are no longer with me.
Then think of different things than sad things?
Imo it seems your issue is that you cannot let go of bad experiences and sad emotions. If you can learn how to not mope and think of bad things all the time, your mood and life will improve greatly.
Going "my mind wont let me forget" or "everything i do reminds me of bad things" is not the way to go. You're the one who is making yourself think these things.