Advice Needed. in Hello 👋🏽

My boyfriend and I want to move in already.
I’m almost 20 and it’s as if my parents don’t realize that, but that’s a different story for another day.
We want to sit my parents down and tell them that we’re moving in together. The problem is I’m 80% sure they won’t allow it. I just need them to let me live my life. I want to leave the house already but I want it to be done the right way. I just don’t know the right words to say. I don’t know what to tell them.
My parents are very old fashioned Hispanics. I must have their blessing to do anything, and till this day I’ve never gotten their blessing for anything.
They’re extremely strict on me (although they never, ever, were with my sisters) and never let me go out.
I’ve talked to them about my being able to go out plenty of times, and so have my sisters. They refuse. I CAN’T EVEN GET A JOB!
I’ve just had enough with living here. I’ve had enough of being treated like I’m not allowed to adult.
Please, someone give me advise as to what I should say. Or, if you have something else in mind as to what I should do in terms of me leaving my house.
Thank you.