How can you be a good defensive end?

I'm starting to play football next year going into gr 10. Im 5'10 and 174 pounds. I'm planning on being a defensive end. I was wondering IF anybody knows what it takes to be a d-end? Also how to be a good one.

for starters get bigger! im 6'3 240 pounds and im not the biggest d end in my legue. u may have speed but u need the strength.