How to handle and heal from a break up well

[guessing]

Please leave me some tips or advice, feeling shitty after a break up tonight with someone I care about.

Distance yourself fully

Block all social media so you can't look

Cry it's ok to cry

Write down things you'd like to say.

Keep your mind busy, read, watch a box set.

Plan things with friends, ask them round.

Supposedly dairy is meant to help! Got it from a google search. Who knows.
And don't romanise the good times

Write a list of why you are not suited and carry it with you at all times. Stay strong and, as said, cut all contact a delete from social media.

The book 'It's called a break up because it's broken' helped me massively when I went through a horrendous break-up.

It has activities, anecdotes and tips. If nothing else it should definitely keep your mind occupied for a while - it's quite funny also.

I was coming on to recommend that book too likeacow it’s no nonesense but funny and kind. Keep busy and don’t contact him. I’m sorry you are having a shitty time at the moment

Cliche as it is - time.
I'm three months in, and although I still have bad days, where I cry my eyes out, open up the wounds and torture myself; but they are becoming less frequent.
Be patient with yourself. Feel the pain, for however long it takes.
Cut contact. It gives you a sense of power and control. Even if you moan and cry constantly to your friends, at least you're not doing it to them!
Find yourself a project - for me it's a new job and career path. Concentrate on being the best version you can possibly be of yourself.
And most importantly, learn from this. Heartbreak is the best chance to grow as a person.
If it can't be fixed, 'own' your part. Make peace with yourself; acknowledge where you went wrong.
And in time, however long that may be, you will heal.
(I'm not there yet, but I'm on my way!)

I think take a 3 month break from any and all contact is the accepted advice - so block away. You can always cyber stalk later if you wish!

The only thing that helped me was doing above and talking it out with friends until I had exhausted myself. (And probably them but they are angels!)