How to get over my ex...please help?

My ex and I have been broken up since the beginning of december. We had a very serious relationship but it was long distance and he ended up moving home after living with me for about a week cause he couldn't find a job and got stressed, ultimately putting the nail in the coffin so they say. We went through a lot after breaking up but now we are pretty good friends. I've been trying to get back into dating cause I honestly feel lonely. I met one guy after my ex and I really liked him but he ended up being a loser and having a gambling problem. I feel like ever since then I've been comparing guys to my ex and they end up not good enough because they aren't like him and I don't know how to stop this train of thought because it isn't on purpose. I really like this one guy I'm talking to now but I feel like Im pushing him away because he's not exactly like my ex. I don't know I just need some advice. Im still really in love with my ex but I don't see us getting back together anytime soon so I need some help please..