Tips for getting over a two year relationship

I’m really struggling getting over him. There were so many red flags, he always messaged other girls, he’s cheated on me before… never liked when I talked about my anxiety. But there were times he treated me like a princess. Opens the door for me, buys me things. We always struggled with sex, we always felt bad and took it out on each other. I just want this time to focus on myself, but I’m scared he’s going to move on to another girl. And that’s going to hurt. I just want girl to girl talk with someone. And I’m starting college soon at a university I’ve been wanting to go to, he’s a senior in high school.