What to do??? My face is breaking out?

iam 14 years old and before that i use to had nice smooth skin. but since the year started my face started breaking out. bumps and a little black spots are appearing on my face. i kno this is part of pubrity, but what can i do to take better care of my skin and reduce the bumps?? i seen many neutrogena, pro-active and other brands ads. but what is the best product and inexpensive brand i can use??