Strict Parents? (venting)

Hi guys, just needing to rant honestly.. I didn't have anyone to talk to, so here I am spilling my problems to anyone who wants to listen to me. Ummm.. I'm 19, and I believe I do have strict parents.. maybe to an extent. So when my other friends turned 18, they went out to bars, clubs, drank and often went on spontaneous 3AM drives to McDonalds or whatever.. But when I turned 18, I knew there was nothing thats going to change. My parents still expect me to be home before 10PM sometimes 8PM, they expect me to follow through my plans with my friends.. can't have any last minute changes, they expect me to hang out only with girls because every other boy I hang out with could be "my boyfriend" and "dating is not allowed". I can't go out on week days, strictly home to school and back and if I do hang out with friends on Weekends, only Saturday. If there are house/birthday parties.. I have to be home by 10PM and we all know.. that the party starts after 10PM. When my friends occasionally drank alcohol, I never drink. I'm not much of a drinker.. I've never done anything what my parents thought was "bad". I just sometimes feel like I let go of people because I don't want to feel empty and left out.. but because I do let go of people, I feel lonely. I also feel like, my parents doesn't trust me or my decisions. I also don't understand why they should "stop" me from being able to love another human being, like I can't think or act for myself. I do bring it up to my parents several times that they're too unrealistic with their expectations and that I feel like they don't trust me when all I have been doing for the past 19, almost 20 years of my life is blindly trusting them.. and obeying them. However, when I do bring it up, it's called "disrespect" and "over-reacting" and it's to "protect me". And maybe I just don't get it because I'm not a parent.. but I just feel so lonely and chained down.