I kind of understand where your going here >
My thought is; you're not ready to commingle with the neighbors, you want to keep to yourself, afraid of ridicule. Am I correct ?
If this is the case, get treatment for that and stay at home with your parents where you feel more secure. Then once you can get into an elevator and start up a conversation with anybody that smiles at you, your ready to move on, from what I read here, your not ready and asking here is the proof. Sorry to be blunt, know about these feelings and the inability to just talk about the weather to a stranger seems difficult, you need emotional stimulation and what's called coping skills !!
btw, a bus pass is your ticket..