Bullied for …………….(you decide)

Hi my name is jake and i have problems with bullying.So it started this one day I go down to play football because I love it and I am good at it.This boy let’s call him bob he comes and kicks the ball away and tells me to get it. I obey and go to get the ball.Then he comes and he spits on me.Keep in mind that he is in 9 grade and I am in 6 grade.I start crying because I feel ashamed and disrespected.I tell my mom and dad the story and they tell me to call his mother and tell her.So I listened and told her mother that he had spit on me and I felt really bad. But this guy gets to know and the next day he makes fun of me and humiliates me. Please help