If you are throwing a party and invite 100 guests, only 10 will show up. 9 out of 10 will flake out. This is normal and that's how people work.
People don't initiate conversations. It's very rare to meet somebody who will initiate conversation, and keep it going. If you want to have good time, that's on you (to keep finding topics and jumping from theme to theme, have a lively back-and-forth going). It's a skill you can learn and is incredibly easy when you get in the groove.
People don't jump on it, when you invite them to something. For 10 attempts to do something, only 1 will succeed. The key is to keep going and simply have 100s of ideas and keep inviting people. If you are not inviting, nobody is and NOTHING ever will happen. People just keep waiting around, standing around and are incredibly passive in general.
And it's not like everybody is going to parties and you alone are not invited. Nope. It's a desert. In fact, if you yourself don't think of some activity, nothing is happening ever. And most people seem OK with this kind of quiet existence.
The only thing wrong with you is that you have higher expectations (and desires) than the baseline. The solution is - go and make what you want happen. The way to do it: keep having ideas and inviting people. 9 times out of 10 they will decline. That's completely OK, just keep having ideas. 9 out of 10 times when you actually go out and do something, it will not be very exciting. That's the reality and it's completely fine. But then during 1 out of 10 times magic happens.