I’m struggling

I’m 22, and I feel like I’m in a really weird transition in my life. College is over, people are coming and going, and honestly it’s been pretty lonely.
I’ve been struggling with porn and masturbation a lot lately. It feels like whenever I’m alone or bored, my mind just goes there. Even when I try to stay busy, it’s hard to stop thinking about it. It gives me a distraction for a little bit, but then I just end up feeling the same afterward.
I’m worried that if I don’t get a handle on this now, it’s going to affect me long-term,my relationships, my discipline, and just the kind of person I want to be.

Has anyone else been through this? What actually helped you?