Striker i have social anxeity too, i mean the kinda were i should be on meds. I have gotten 2 forms of advice that i need to work on and that i think could help both of us.
Both are exercises, they put you in 100% chance to fail scenarios.
1) Goto any store/reteraunt/shop and ask for something far from what they would have
ex: Goto a salon or tanning place and goto the counter confidently and say "Hi, I would like to order a pepperoni pizza." say this with a smile and good posture etc. If they say something like "huh?" or "what?" ask again, if they say "We dont have that here." or some other version of this that implies they dont serve pizza say something like "Well ok, have a nice day then." and turn around and walk out. Maintain your confident smile and good posture, keep your voice confident.
do not say sorry, its not your fault they do not serve pizza!
2) Walk upto women (preferably one that intimidates you, but anyone will do) and say "Hi! I'm Marvin Martian. What's your favorite flavor of bowling ball?"
same as before do it with confidence, dunt do it like its a joke, say it slowly like u mean it, maintain your alpha smile and posture and voice. this is Ross Jeffires exercise to get over aproach anxeity.
I have yet to try them but i will try to get to it and let you know if it helps. i went to AC this last weekend and completely froze on opening groups

i need to get over it.