You may be old enough to appreciate the following advice but here goes. First of all you sound way too young to be wrapped up this much in boys. Very rarely does anyone find "the one" in Jr, High or High School. Even if you "thought" you found "the one" odds are what you consider to be a "catch" at age 16 will not be the same thing you value at ages 26 or 36.
One of the main purposes of youth is to learn what it is we want out of life with regard to careers and relationships. I once heard Phil Jackson (former Laker and Bulls coach) once say: "Don't let success go to your head and don't let failure go to your heart." In other words strive to find balance in life. It's not the end of the world if you're not dating someone for a while.
Losing a boyfriend is not the same as losing job. It's not like you have to run out and find a replacement as soon as possible! Too many girls and women for that matter feel incomplete if they don't have a boy or man in their lives. You have to learn to be happy regardless of your relationship status!
Interestingly enough people are drawn to (positive and happy people). There will be many opportunities for you to meet new boys. It’s a waste of time and energy to obsess over it. Enjoy your school activities, hobbies, and friendships in the mean time.