How do you all deal with overthinking?

I need a new way to stop thinking for a while. I don’t want to do anything that’s too harmful because l know I’ll end regretting it. Sleep is not doing it for me anymore idk how to explain it but it feels like I don’t even have the energy to sleep. The people around me say that talking to someone or writing your thoughts in a dairy will help. But honestly it just makes it ten times worse. I just want to know what other people do that’s effective, maybe it’ll work for me.