List some things related to tennis, school, fitness, or just life in general that you're sick of hearing from older people. I mean things that are said to you because you're still "a kid" or "a teenager" by adults. Personally, i'm sick of being told by my parents that i should study. They don't really have a concept of what studying is now. It doesn't make me angry at them, but i wish i could get it through their heads!