no friends why?

Ive been where im studying for two years neally and dont have any friends,i do talk to poeple in my lessons but no further than that my close freinds have started to no care even if im out or not.And i think im starting to become depressed as all i want to do i make some freinds that like me and want to spend time with me,i dont think ive got a crappy personality i wouldnt say im good looking but also say you wouldnt scream at me if i walked past you in a dark alley catch my drift.