How do I resort back to myself

I don't want to rant here

But I went through a breakup recently and it has drained me of life literally

My health my focus my peace everything is gone

I can romanticize all I want but at the end the truth is is that this relationship fucked me up pretty bad

It's been more than a month

I just want to go back to myself

I just want to have my spark back

It's just how I lost myself in all of this

Can't eat can't sleep can't work

Nothing seems interesting

Idk what to do