>>628
Get it cut long so if you don't like it you can shorten it.
>don't know what shape my face is
Look in a fuckin mirror dude.
If you're going to a barber try to get a man to cut your hair. If you want a woman to cut it go to a salon. And barbers and such have a harder time with customers that have no idea what they want, because they are used to people getting really pissed when a haircut isn't to their liking but refused to give any instruction otherwise. Try figuring out what you definitely don't want, that'll at least give them more than zero guidance. If you aren't balding don't worry too much about it, if the first barber fucks it up just wait a month or two and try a different barber. Rinse and repeat until you find someone that cuts it how you like it, or at minimum cuts it in a way that you don't dislike it.