I was sexually harassed.....

About two weeks ago I was sexually harassed. Keep in mind I'm still very young so yes I'm still in school. So before this had all happened we were really close friends. But he was taking in to a whole other level then I wanted him to be. He would grab my body and tired to finger me all the time. I thought oh I will just tell him to stop but he never did😢. Then the next week my friend came up to me and said he was trying to touch her to (I still hadn't told anyone what had happened to me) I was so mad that he was doing that to my best friend. So we told the teacher. He got suspended for only 2 days. And I still had to see him other place bc I cheer for him and things like that. But when he got back all he would do is stare at me. Not like he was mad but just stare. The cops learned of the situation and they soon got involved my friend and to go in for an interview and she had told them that I was a victim rather than a witness. So now I have to go in for an interview. Does anyone have any advice???