For the love of all that is holy, get rid of the beard and trim the sideburns neatly. Chicks may dig the look, but you look so much better without the beard. Grow it back in 20 years when you're old, if you want. It will match you then. Right now it makes you look like you're about 12 and pasted whiskers on your face to look like your dad and practice with his razor when he's not there.
As Fint said, part your hair about two thirds of the way. I have similar hair and can tell you from long experience, keeping it trim is key. Parting 1/3 of the way left to right is essential. Do not gel it or slick it into place. Anything in your hair is going to make it look slick and shiny. Just use a tiny amount of Fiber, just enough to hold it into place, and do the part with your hands, not a comb. Take both hands and brush your hair back, smooth it into place wherever the part naturally falls, work a little Fiber into it to keep it in place, and you'll be both a babe magnet and make a super presentation to the nice people at school who hold your very life in their hands and will be judging you (in part) by how you look.
A final point. Schools like people who are authentic. The beard looks affected. They hate affectations. Ditch the beard for the same reasons you wouldn't wear a diamond earring. One that showed, anyway
