Why do I feel this feeling and how to get rid of it?

I’m 14 .I feel that I wanna die and that live doesn’t deserve because it is hard,awful and misreble I think I’m so small to feel this feeling but I really wanna die ,but I only have two reasons which makes me in able to susin first that’s wrong ,second I’m not a good person as I’m not really religious and I don’t pray regulary.