First of all, the things you mention are not really courageous. Women get Brazilian waxes and electrolysis all the time, I wouldn't call pube removal to be courageous. And moving to new places where you don't know anyone is quite normal and not many people become shut-ins like yourself, so it's not like you make a new social circle wherever you go. Being a shut-in in Pennsylvania doesn't require more courage than being a shut-in in Massachusetts. So, if that is your 'proof' for not being a coward, it's not really working.
Second, cowardice regarding rejection doesn't automatically mean you
are a coward. It means you're
behaving like a coward in this matter. It would be courageous to overcome your fear and stop being so worried about getting rejected. That's why people are encouraging you to take action. If you were a genuine coward, all this encouragement wouldn't work...