Genuine advice from a recovered coward: just stop being a pussy, get the fuck up and start doing shit that needs to be done.
The following are things I made up and tried to use to my advantage (some are bad) but they help with anxiety: sleep deprivation, wearing none voice canceling headphones in public, sitting long hours in crowded place just staring at people and getting used to their existence around me. Eventually attempting small talk or even butting in on a conversation I found interesting, and after that come all the big steps of actually making friends and going on dates. Just take it all one step at a time, no need to rush.
Learn to use your fear to your advantage, for example, to stop yourself from doing something stupid or impulsive. You'll learn that fear is sometimes neccessary for survival and that knowledge will make you hate yourself less.
Recovery took me around 2 years and it's an endless process where you have to be prepared for anything and all kinds of reactions from people. Yes, some will see you as a weirdo or even roll their eyes at you and that's ok.
Be prepared to make mistakes and lot's of them. But every time you make a mistake do not coware or give up, keep going like nothing happened. Here's a fun fact about the general population: most people are nervous around strangers and authority figures, and most tend to ignore their fears in the face of important events. Ignoring the majority of your fear is something you have to learn eventually as well.
Good luck, nigger.