Learn to be difficult when it counts. In school as in life, having a reputation for being assertive will help you receive preferential treatment without having to beg or fight for it every time. Think back to your days on the playground. There was always a big bully and countless victims, but there was also that one small kid who fought like hell, thrashing and swinging for the fences. He or she might not have won, but after one or two exhausting exchanges, the bully chose not to bother him or her. It was easier to find someone else. Be that kid.