I need some help. TW venting

Hey everyone, i have a couple of questions about christianity and i don’t know how to find help. I used to be really religious but then i did some stuff with a dude and then i’ve been falling down ever since. I don’t feel a connection with god anymore, i don’t feel proud to wear my cross, and i just overall feel lost. I miss being connected with god but i just do not know with the mind of hell on my mind because i did stuff with a dude. what if he doesn’t forgive me y’know? any advice is welcome here.