For bridesmaids, who would they be if I have no friends?

Then you don't have bridesmaids. There is nothing weird about it, and it's a far more sensible solution than hiring bridesmaids off the street or asking ex-girlfriends who are quite possibly on drugs to fill in. You know bridesmaids aren't mandatory, right? If you have to struggle to fill the dresses, then you;re better off not to have them at all.