What do I do?

I’ve known I’m gay for about 5 years now, and don’t get me wrong I’m happy with who I’m becoming; but I don’t know where to turn. I’ve had the same crush for those whole 5 years. Crush doesn’t do what I feel for him justice. I’ve never though of myself as good enough for him. It’s either my weight or I don’t think I look attractive, or he’s considered cool and I never was. But everyday I think about him. I don’t even do to the same school as he does anymore but he’s still at the center of my thoughts. And what makes it even worse is that when I look back at how I developed as a person, it’s all because of him. My taste in music, my fashion choices, etc. My love for him made me who I am today. Everybody says I should just get over him but I don’t think I can. I’ve never felt this strongly about someone; I didn’t even think I could, but I do. I’ve been spiraling in and out of depression because of it. I’ve tried to move on before but it’s never worked. Nobody even knows if he’s gay or bi. He’s never dated anyone. My question is what do I do? Should I force myself to get over him, do I keep going after him? Where do I turn? Please help me.