Does OCD make you feel like you don’t deserve good things

Does anybody have any tips on how to manage deserved guilt and OCD at the same time? I actually carried out some awful actions in my relationship 3 1/2-4 years ago and absolutely deserve to feel guilt and shame. But now my gf says it’s time for me to move on, I’ve punished myself enough, that I deserve to be happy, etc. I disagree and feel like I deserve everything I’m feeling, and will forever. Opinions on the internet have solidified this for me (most people’s opinion about my event online seems to be that I deserve to think about what I did for the rest of my life, that I don’t deserve love, that my gf should leave me, etc.). I’m scared to go against those opinions. Sorry for rambling, I’m just so stuck between trying to move on for my girlfriends sake and rehashing the past every day to try and understand/fix my faults. Any advice would be appreciated.

For me with ocd… it’s honestly the guilt, because mine comes in question forms and an answer is provided and if it feels like yes ocd tells me i don’t deserve to live or have good things which keeps me ruminating until i can dispel the answer is no or idk. If i can overcome that guilt I could beat this. That niggling ocd guilt that says the question needs to be solved Has anyone else experienced them have overcame it?

OCD makes me feel like i am the scum of the earth and i believe it is true. i’ve done horrible things in the past when i was younger that i am not proud of. i know people say that we have to forgive ourselves for our past mistakes/know that our mistakes don’t define us or what not, but i feel like what i’ve done is irredeemable. although i was young back then, it dosent make it an excuse bc i am old enough to know it was wrong. why would i do that?? i’ve tried to forgive myself, but i keep going back in a loop bc of my OCD. what if i am using my OCD as an excuse? i don’t know what to do, please help.