I think about my ex almost daily.
Why do you think about your ex so much?
Because I miss being with him.
I understand it can be hard to get over a breakup, but you can't dwell on past relationships so much. If you can't move on, you will miss out on potential opportunities for new relationships with other people.
I don't care about other people.
How long have you been single? It's okay to take time for yourself and figure yourself out.