Struggling with Letting Go of Past Relationships

I feel like I tend to think too much about old relationships/friendships I had- whenever I'm lonely or feel like a loser. like I talk about it and over exaggerate shit. because I wanna like make up for the fact that it's been years since I've felt connected w someone genuinely irl. like I have online friends, but I still have certain boundaries. which is valid. I want to be able to accept that I still want to work on myself longer. and take my time to build my confidence and trust in myself. even if it's been a long time. I still have a lot I want to heal, and thats valid. and I want to recognize what triggers me into rushing myself, or feeling bad about myself. idk. lol