You are trying to go to school and advance yourself, you are not a failure. I know the feeling of not having a secure stable home and how unsettling that feels. If you have to postpone school, can you work more to save up for a different living situation? Or stay in school and tough it out at your friend's for longer? Can you get a school loan to help with getting a different living situation? If your parents will let you stay with them that seems ideal because then you can continue with school and possible still work and save up too? I'm sorry I'm just throwing ideas out there. Most of all I just want to say you are not a failure, again you are trying to advance yourself and sounds like you atleast have on decent friend that has let you stay there, it sucks it's not the best situation there but atleast you have that option.