I finally did it

For the last 2 years I've been in a toxic relationship full of envy, distrust, lies and control. Two days ago I finally got the courage to break it off with him. I burned all the letters, notes, and gifts he gave me and donated a few good items. Now all the emotions are hitting me so intensely. I've been crying non stop the last 24 hours. I can't sleep. I feel like I miss the habit of talking to him and having him there. I keep thinking about the few good moments we had and forgetting how unhealthy the relationship actually was. I've blocked him on nearly everything, but it's taking every fiber of my being to not message him or call him. Does anyone have any tips for getting through a breakup and healing?