Help me plz!!!!

I last saw my guy friend over a month ago actually like 2 months ago, and I miss him so much. Sometimes I cry cuz of how much I miss him and just wish I could see him :( can anybody give me some advice on how to handle this like should I try to distract myself and should I tell him I miss him so much? P.s. Hes gonna be a senior in high school this year and imma be a sophomore which means that he won’t go to school with me for much longer which will make me even more sad, so any advice is greatly appreciated!