How can I forget my ex

hi im 16 going on 17 and I've been with my boyfriend for 6 months now , I really do love him and he just dump me ... I dont even know why, just before school started everything was going good then school started and everything went rong I dont even know why, he igored me, didnt talk to me at school at all.... I just dont know what to do I want to forget him but I dunno how, its killing me I cant eat,sleep, focus in school (its my last year), I just cry cry , I feel sorry for my self, I know he wasnt a good guy for me all my friends told me but I still do love him a lot , I cant stop thinking about him , my parents are really worried that I'll do a depression or sumthing..... the worst thing is that we did stuff together like you know and he was my first love! I just cant seem to accept the fact that its over! I wish he would come back in my life but he said it was over for ever! .... when he called me to tell me it was over he told me about this one girl in his class that she was alright and it sounded like he had a crush on her... ah geez I dont know what to do??! please help I really need help on how to get over him or hate him , because I cant seems to hate him no matter what he did to me!!! and he hurt me a lot but I'm still in love with him please tell me how to forget him and love on !!! because I really cant help myself

first of all I am very sorry that you are hurting. I know what it feels like to lose a loved one. I was with my girlfriend for 2 years and we had a child together. I loved her so very much, and was planning on asking her to marry me,suddenly out of no where , she broke up with me.I tried my best to get her back, but I wasnt able to. I hurt a lot , cried, cursed God, swore, became depressed. etc. etc. But I found out that with time,the pain started to go away , and slowly , I forgot about her. It didnt hurt anymore when I thought of her and A year and a half later I met a wonderful woman,Who is my soulmate. So in your case it will take time, but you will get over this guy. you are still 16 years old, you have your whole life ahead of you. you will meet more people. and very soon your ex-boyfriend will be a thing of the past.