How do I move on, I'm hurt and all I've done is cry

Normally I move on easily, be upset for a while and distract myself, then date someone else. But I can't see myself with anyone or even talking to them.

I've just spent the past few days crying, I've gone out and soon as I'm back home I'm upset again, I just can't get over it. Just knowing there's someone else hurts even more.

My usual way of moving on isn't working and I can't deal with it and don't know what to do. How do you move on

Everything just making me cry, I just watched a comedy and I started crying at it I'm just a mess