How do I move out at 18?

Today was the day. The day where I can no longer stand the way my relationship with my parent is. I've tried to communicate, I've tried to set boundaries. It's painful. I'm so tired, I'm sorry for not explaining it very well.

I want to move out when I turn 18. I currently 16, turning 17 this year. I was thinking I could join the military when I'm 18? Maybe 17 and not be at home a lot? Or I could get my own apartment the day of my birthday?

I want to do this secretly. I want this freedom.

I don't even know how to move out. I don't know what I need. If I move out when I'm 18 I'll need to own a car before hand. I don't even know how to get a car to my name, so that I don't need a co-sign.

Someone please help me make some ideas. I can't do this anymore. Moving out is my only motivation