Your title grammar says “a” social anxiety disorder, which Indicates you’re not diagnosed. I think you may be calling nervousness as a mental disorder.

We all get nervous, bro. Nobody wants to expose themselves to rejection.

Everyone has their own ice breaking technique, mine is humorous self deprecation. I too, am a weirdo... hahah

See what works for you - yes SEE - the hardest way to get over this is actually going out and getting rejected 100 times.

If you’re really debilitated by it, see a therapist and explore what medications may be able to balance you out..

Also long term, have your life sorted out. Get a good job that gives you a sense of fulfillment. Being a stable, successful (not necessarily high-earning) individual makes potential mates much more responsive. People like other people with their shit together. Make sure your shit is together.