I know whatcha mean, but unfortunately my biggest fear in life is being alone :/ Its literally the most uncomfortable thing for me. It like irks me every day that I am alone.
One thing I realized about being alone is, the more you want to not be alone, the harder it can actually be to accomplish that. This is because it makes you more prone to desperation, pessimism, bitterness, etc, which are traits that people don't really want in their company. It took me a while to realize that, but once I did, I found that being alone really didn't bother me anymore, especially considering I have goals and hobbies so I can keep myself busy and entertained. I'm not really much less alone now than I was before this epiphany but I certainly feel a lot happier, positive, and at ease with myself. So even if I don't ever actually become less alone, it's better than drowning in self-pity and being sad over it all the time, so I really lost nothing. This doesn't mean you shouldn't take up the opportunities to meet people (since that's part of life), but don't be so invested in it to the point where you feel like you're worthless without them.
Focus on yourself and your own growth and self-discovery. If you just keep growing you'll gradually become a more rounded and interesting individual and people will be naturally drawn to you anyway.