I want to be over him - i want to speed up that process

My bf and I broke up about a month ago.

There was a lot of reasons but nothing extreme. One of the main reasons was that I didn’t feel like being in a relationship right now, we’d been together for over 4 years and I’m 22 right now and I didn’t know adulthood without him.

I want to be over him. I get little waves where I miss him, usually when I’m bored. Or he will randomly come into my mind when I’m doing stuff. Or I just need a hug but I only will want it from him - this feeling passes within like a half hr though.

I don’t want him coming to my mind. I want to move on but I can’t - it feels so weird that i cant even tho I want to.

Is there any advice anyone has??