I haven't personally gone through it too much but am pretty sure everyone who has ever drunk socially with the concious intent to use it to help their social skills rather than just for fun will have experienced those fears
Don't really know how to fix it, it probably requires a personal solution but I'd say just try be sober sometimes, if thats too difficult only do starter/pre-drinks and let yourself sober up over time. The initial alcohol will get you talking and afterwards its up to you to fight your demons and maintain the interactions as you get less drunk. Eventually you will come to some kind of realisation but don't conclude stuff too soon, you can then try and act on what you find