Need some sister advice

Ok girls, I don’t even know what’s going on but lately I’ve been hella emotional about a breakup... that happened 8 months ago. I don’t know why it’s suddenly coming back up. It might be because I never really processed it, I was so busy with my final year of school and all that that I kind of just threw myself into studying and didn’t think about it at all. And now I’ve got all this free time so I guess I’ve just been thinking about it more and feeling pretty alone. It’s not even that I miss the guy though. Looking back he was an awful and very manipulative person and I even heard that he cheated on his new gf. Maybe I just miss someone always being there. But I know I haven’t emotionally recovered from that relationship and break up (obviously) so it would be entirely unfair on the other person if I was to get into a relationship now just because I know I need time to work on myself.

Any tips or advice, ladies? How did you cope and how long did it take you to get over it?