my advice may or may not be relevant, but this is what worked for me.

"taking care of myself" was a weird process.

if your as fucked up as i was then be prepared to be a burden on your loved ones for a good little while. my shit went down several years ago and i'm still not quite back up to 100%. close but not quite.

if your not a piece of shit, then being a burden fucking sucks. spread it around. some friends let me crash on their couch then eventually move in when that became an option. i didn't talk to them about my problems. they already helped enough. i vented elsewhere.

how much experience you have dealing with similar bullshit is a factor. i had been through several very intense break ups before, this just happened to be worse. what do you do when you feel like shit for other reasons? find things that genuinely make you forget about it if you can. i tried and failed. the only thing that worked was time. this also sucks.

(Disclaimer: i don't actually recommend this part, again it's just what worked for me)

i drank a lot. which you have to be really fucking careful about. i borderlined alcoholic repeatedly during this phase. self medication is a tricky mistress and not for everyone. the best thing i did was start smoking a fuck tonne of weed again. for a long while alcohol was my go to for a break from the stress. that quickly turned into a daily thing. do not do this. for me, weed is better then anti-depressants for a million reasons. if you smoke weed, then get as much as you can afford. if not consider it. it's much more useful then a lot of people will lead you to believe. especially for dealing with intense emotion. it will help you eat. it will help you sleep. but again be careful. self medication is less a temptress and more a seductress. you have to be willing and able to modify your dosages to gauge how your brain is dealing while sober.

that's really the extent of advice i can give without more detailed information. it really breaks down to "keep yourself busy, and wait."

also fogzen is right, for no reason what-so-ever communicate. block on facebook, block phone numbers, just to be safe. the last thing you need the first time your feeling decent. is that.