Based on what evidence? Have people told you this or is it your perception that they don't enjoy conversation with you?
If multiple people have told you that they don't enjoy conversation with you then... GREAT! You have data! Go ask them what it is they don't like. If you can agree that they have valid concerns then you can work on fixing those things. If you don't agree then that's ok too. You're being yourself.
In other words, being myself is generally the ticket to eye-rolling, exasperation, and boredom from others.
My trick has been to keep others talking about what they're interested it in as long as possible. That usually works well because it's fun to hear what people are passionate about.
Then again, last week that got me trapped in a conversation with a person who advised me to buy gold and bury it around my yard because paper money isn't real since we left the gold standard. Nice guy though.
I've not actually been diagnosed, and honestly not sure if I would be. The key for me will likely be just practice in areas that work well for me. It will make the work into habit and probably make me more comfortable.
Now to find the energy/courage to walk out that door to practice...
That roughly how the first part of your advice comes across. You are not the first and won't be the last. I bear you no ill will for saying it, but it's on the level of telling a depressed person to just stop feeling sad.
I don't know if I'm diagnosable as actually having Social Anxiety. Heck, I never even heard those words until some drug commercial came on TV, so I'm a bit suspicious of the label.
I do know that I see social experiences as different than most people. I've always been that way. Just a bit different in the head I guess. I like different things, think differently, and behave differently. It's part of who I am.
I'm very much the old-school nerd. The one that everybody rolls their eyes at when he starts speaking. I care about things they don't. I don't care about things they do. So it's work for me to communicate with others in a way that doesn't make them roll their eyes. Yes, it's a skill. I'm better at it than I used to be. I could probably be even better at it. But it sure won't be because I stopped caring. If I do that that I'd become an oblivious blowhard.
> Just stop caring what people think.
I read non-verbal communication about as well as spoken word. I hate getting just the voice. Phone conversations are the worst.
Here's the thing... other people really do judge you. Some people make everyone else in the room feel at ease. I'm not that way. Sometimes I can fake it, but generally people don't seem to enjoy conversation with me.
It's very stressful alternating between saying nothing and too much, which unfortunately makes it harder to practice this skill of conversation that some people just find so easy.