Ah sorry you’re so down OP.
I’ve been single for a very long time and I think I’ve got it down to a fine art. I really appreciate it tbh.
You’ve no-one to answer to. You want to go out? Go. you want a curry? Have one. You want to go on holiday with your friends? Get it booked. You’ve no-one to consult or check in with.
Bed, remote, sofa, bathroom, kitchen, washing machine all to yourself. All the time, whenever you feel like using them. They’re yours.
Money/bills/spending- all your decisions. Want to splurge? Yep. Want to scrimp? Yep. Go for it. Also you can work loads and no-one is sitting at home moping because you’re building a career/ earning a fortune.
You can have sex with different people with no strings, no commitment, no pressure to see them again, enjoy new sex, have new experiences, date new people etc.
See your friends more, go out, have them round, have a party, get new friends, have new hobbies.
Get a pet an ex wouldn’t want. (This was a real highlight of my break up with my ex!)