My breakup shattered my self esteem. I sometimes feel like I’m not worth loving.

Less than a year ago, I had a falling out with my parents because im gay and I had to leave home and be on my own. Now, a little over a month ago, my first boyfriend dumped me because he had internalized homophobia and apparently couldn’t work through those issues with me still in his life. He was the first person to ever tell me (romantically) that he loved me. He used to tell me I was “the prize.” Then he dumped me. He was confident, funny, smart, everything I wish I could be. Now my self esteem is shattered and all this just weighs so heavily on me. Any tips on how to overcome this issue?