Okay so i dont really like this kid but i dont know how to get him off my back any advice?

First, give it to him gently. Let him know that he's just not your type, and that you dont really like him like that. If that doesnt work, and he continues to bother you, lay it to him straight. Tell him to leave you alone, and let him know how you really feel and that he needs to back off. One thing you need to make sure you dont do is lead him on. Because if you are, its your fault youre in this situation. But just be nice at first, and if that doesnt work, you gotta do whatcha gotta do (;