I'm here to say what you're experiencing is an unfortunate symptom of our dysfunctional civilization. The only way to survive it is to become dysfunctional ourselves. There's nothing inherently wrong with you. If you were part of a small sample then sure you could claim responsibility for your misfortunes, but you're just one of millions of men suffering from the male-loneliness epidemic. To understand why this has become so commonplace one need only look at the responses here. Men the world over have become so toxic we're practically radioactive. Lack of accountability at large and abuse of privilege is the reason for this phenomena. It will come to a head some day where we must confront the true nature of the issue and seek resolution, but it's unlikely to be anytime soon.

That said, you're not unattractive. You probably need to practice socializing as it is a skill. It's going to take time. You're going to make mistakes. You're going to be uncomfortable, but we must leave our comfort zone if we are to grow. It's going to take a lot of trial and error, but the most important part is to keep an open mind. Accept feedback as constructive criticism and ask for constructive criticism when you can. Over time you will become more comfortable. You will recognize patterns in your social interactions. You'll start to see more positive results. Your confidence will grow and it's all going to start snowballing until your balls deep in some sweet pussy/bussy.

Godspeed friend and good luck!