1. on messenger i "archive" my messages or delete them so i dont have to see myself not being replied to
2. i write down a list of friends so that i dont forget the positive relationships in my life, bc of my lack of emotional permanence

just two things but they really really help me, especially 1 when i am going nuts over someone not replying for more than 20 minutes. i know its small and might seem silly but it actually really really helps over time