How do i tell my mom i may be depressed?

I had thought i was depressed for a while and i just didn't want to accept so i always just pushed the thought aside. A few days ago i looked up the signs for depression and i have almost all of them. I'm a little scared and i am known to not be afraid of anything. Knowing this makes me sadder. I never really talk to my mom about anything, occasionally if i go out or something but not about anything serious. I know i need some sort of help but i have no clue how to tell my mom. I don't like living like this..