After reading your comment, I'm left wondering. What exactly is actionable in it? How exactly does it help a person in OPs position? Apart from the part deferring to a therapist, which is more or less common knowledge in this day and age, there's nothing there thats ... helpful. Actionable.
> What exactly is actionable in it?
That’s exactly the point!
There is no _action_ towards the claimed goal that wouldn’t make the problem worse!
I know that both from personal experience and from years of observation of other people.
The only _action_ is to switch focus completely away from this problem to something more meaningful.
Its actionable by doing things for yourself, not for the purpose of meeting people.
When I say doing things, I mean things out in the world.
During those you might chat to people casually.
People like people that do things and turn up, so many people do little and aren't interested in going out and turning up to things.
Do stuff and you become more interesting.
Mostly people talk about themselves so ask them what they do and be interested, when they ask you what you do you will have done a bunch of stuff.
Get out there and enrich yourself with experience, make yourself too busy to be lonely.