I did a very similar thing for very similar reasons at a very similar age. It was hard for sure to break the cycle of dating -> breakup -> dating again.

My best advice is genuinely that I had no fun on Tinder etc. Everything clicked when I stopped looking for people and started just going out with friends: scrubbed up and put together, available but not pursuing particularly, generally talkable to without being a creep.

You are right that hooking up and getting laid won’t solve your needs, but it is fun. I say get some therapy (always helps me massively) and be chill. Paradoxically that approach of not looking and not caring gave more success than anything else for me.

The other thing is to let go of that “I really like this person and need to solidify this connection into a long term relationship” instinct. You can feel that love and care and respect whilst keeping things relatively casual. Even on a one-night thing, it can be nice to do some slightly date-y things but with no expectation of it being more. Like going to get coffee or brunch the next morning.

Finally also if you’re into kink, munches and events can give a really good place to make friends and explore that particular world.

Good luck :)