I felt this way a lot in my 20s. Hopefully it gets better for you. It got better for me. I find living with a good roommate helps. My roommate left on vacation for 9 days and I realized I don't like to be alone anymore. It was nice for a few days but then I got restless and bored. If you can find one that can be a friend, it can really help. And don't settle for a partner who's not right for you just because you're afraid of being alone. I used to think I was really pathetic because I was single. There's nothing wrong with being single. It gives you time to figure out who you are. And you can do whatever you want. Travel, go explore. I highly recommend staying at hostels when you travel, you'll meet all kinds of cool people and now is the time. There are people I met over 10 years ago while I was staying at hostels that I am still in touch with.

if it weren't for golf i wouldn't have any friends at all.

relax ...let them come to you..

You might find this article helpful.
[tinybuddha.com]

Wanting good friends, attracting them and keeping them is a two way street. It's important not to blame yourself or assume you're unlikable. However, sometimes we don't realize how our own actions can also be misinterpreted.

This is a good article that may help. People love talking about themselves and like being around those who make them feel special.
However, we need to make sure we are not that person who wants all the airtime without the reciprocity of lending an ear and giving support.

We all want to spend time with friends who add value to our lives and we' ll have more of them if we add value to theirs.

This is something that I've had to deal with since childhood. And I am 56 years old. It was much harsher when I was a kid, and the word outcast was what I've had sometimes was how I thought of myself as.

It took me a long time to fit the pieces together. I've had to think retrospectively, and sometimes it hurts thinking about it.

No, you are not "meant" to be alone. You're struggling, but that doesn't mean you are meant to deal with loneliness. Primates, including humans, are social animals. It takes slow examinations.

I've often found myself to be the weirdo, but I"ve learn partly why. And I also learned that there are many people who embrace it, as you should. Not saying you are a weirdo, just saying that there are some people who like people who are different in some ways. And it isn't something that you should be ashamed about.

I will give you one piece of advice. No matter how you feel, never come across as pitiful or desperate. That never works. Whether you are feeling it or not, when you walk in a place, walk and act with confidence. It will change the way people see you. Do that enough and you will believe it. Attitude can change your life.

"Before you diagnose yourself with depression or low self-esteem, first make sure that you are not, in fact, just surrounding yourself with assholes."

Freud

You see, the world has changed. Especially if you're under age 50, people just don't like to talk as much anymore. It's not you...

The art of conversation has been lost due to cell phones, texting, email and social awkwardness that's developed as a result.

You're not meant to be alone. You're meant to find different people to hangout with.