How Do I stop worrying about him?

(20F) he broke up with me around 2 weeks ago and we occasionally send each other reels or just talk like casually and that's all fine, I don't feel anything doing that but I'm just so bloody worried about him all the time like a mom about her kids.

Whenever I don't hear from him for a long long time I just get so bloody worried not in a romantic way just simply worried like you'd get about someone you care about. There's no denying I still care about him obviously but how do I stop it? It's not healthy at all ofc but how do I stop wondering if he's OK?

Please please give me suggestions.