I have bed bugs. They are gross, how do I get rid of them?

I’ve been waking up frequently to what appears to be multiple mosquito bites even though we live in the city. I only suspected but just now killed a live bed bug while I was working late. They are total eww.

How do I get rid of them!? Also does garbage/clutter matter? I do keep a messy room but I read that bed bugs don’t feed on garbage anyways?

ARGH I don’t want to go to sleep now!!