Can’t move on...

My ex and I have been trying to make things work and I am happy about that.. BUT I can’t get this other guy out of my mind. I love my ex, but this other guy makes me happier.. he’s everything I’ve ever wanted. I talked to this new guy a month after me and my ex broke up. Now I can’t get him out of my mind. My ex is sexier, has muscles, worksout and goes to college. This new guy is chubbier, doesn’t work out and eats crap & isn’t in college. He has a good job and says he’s going to college once he pays off his car but I’m not sure if he’s just saying that. Idk what to do..