As far as your roommate situation, your mom could have caused them to move out…who knows what she told them??? A self-fulfilling prophecy, I wouldn't use it as proof that you can't live with people.

My parents did not teach me much about how to be an adult. Some things I am still learning at 41. No need to beat up on yourself.

Your time is better spent thinking of solutions and exploring the options that you do have.