>In my experience, the problem is not a low success rate, but the burnout from being the only person that invites people to do things.

This is what mostly happened with me, I just got burned out from always having to be the one to organise everything or nothing would happen, which is what ended up happening after I stopped, we just stopped meeting up and eventually grew completely apart.

Now, I'm in a completely different country and I don't even have anyone's contacts anymore. But that's been life for me, people come and people go, never to stay.

I've accepted it by now, it can still hurt from time to time, but it is what it is, one should not force their will onto others, I believe.