My 18 year old son wants to leave his university maths course. The course is what he wants to do and the university is fine but he is shy, decided to live at home and now struggles to make any friends or have any social life. He has tried to get into hall but no luck there. He wants to leave and start somewhere new next September. I don't know how best to advise him. He says he does not want to spend a miserable year with no friends.