Losing a boyfriend is not the end of the world but the beginning of the new you. First, forgive and forget and remain cool. Do not let your ex see you depressed without him. Remain positive and do not let just one relationship drag you down.
tell yourself that he will not be your first and only love, he is just one of the guys you loved, im not saying he shouldnt matter to you and just forget aout him because he wasnt your true love, but dont think about him all the time and become obsessed with it or anything. it is hard to lose your boyfriend like that but you will fall in love so many times, and trust me your feelings about him will never change, and you will never forget him, but you still have to move on. you cant be in love with someone who cant really be with you physically because you will never move on that way. i think you should talk to less guys and dont date for a while until you stop seeing his face everywhere you go. when my first boyfriend died, every guy i saw or talked to looked like him and i would see his face everywhere i went, and i reacted with so much hatred and anger towards his killer, the cop. i wanted to kill that stupid cop but i realized that it wouldnt do anything for me or for my old boyfriend because no matter what i did, i could not bring him back. and once i realized that, i let go of him, and focused more on something else, like dancing. and school (surprisingly)