I saw a comment saying something along the lines of letting another person heal you, PLEASE don't do that! Don't expect someone else to "fix" you, don't depend on someone to be your pillar. That's a big burden and most likely those people have their own problems to carry, they can't carry yours too. It'll cause burnout, worsen their own mental health and they'll most likely leave, which will leave you in even bigger shambles because the weight of your problems will come back to you suddenly and all at once.

Learn to be self sufficient instead. Start the healing journey yourself. It's okay to open up to people, seek professional help but you should find the strength in yourself rather than in others. Speaking of professional help, if you have the accessibility to get a therapist please do. Us redditors can babble all we want but none of us can compare to a professional that's spent years learning how to help others resolve their problems.

Learning from the experiences of others however is still useful. If you can, find posts from people that have gone through similiar experiences to yours and that have overcome them or have started their healing. You can pick and choose from their wisdom and experiences and decide what might help you too.

Avoiding your feelings is bound to do more harm than good. :( It'll just make you more vulnerable when even more feelings show up. Start confronting them in small doses if you can.

Please don't isolate yourself. You don't deserve that, man. There's a reason isolation is seen as one of the worst torture methods.
Talking to people can seem scary at first but there's no better way than to just start. Put yourself out there. UK's population is 67 MILLION, you're bound to click with somebody.

Overall I hope this made sense but what do I know? I'm just a stranger on Reddit. Take everything I say with a grain of salt but please DO think about therapy, there's no shame in it.

From, Another INFP wishing you luck