My advice to you would be to stay away from people that isn't on the same mission as you because some people will try to bring you down instead of bring you up. And they will hate on you once they see you are doing better then them.
Another good advice would be to don't mess up in school because once you behind it is hard to catch back up. And don't wait until the last minute to do something because it isn't that easy because then when you wait everything will pile up.
And also i'll advise to just get one girl and not talk to a lot of girls because they will fuck you up and have you stressing a lot and will put you into a lot of drama that you don't need to be in.