help me lmao

okay, my girlfriend and i are going through a rough patch. and honestly, i feel like it’s all my fault. like okay, my previous relationship with a boy gave me massive trust issues, he really messed me up. so whenever she ignores my text or doesn’t tell me how she’s feeling i get scared she’ll leave me or is cheating on me. i hate the feeling of it. and whenever i have anything good i self sabotage, anyone have any advice on how too feel like in good enough and that i deserve happiness? it’s like i just get jealous because i know i’m nothing special and that i’m replaceable.