How do i get my parents to lay off? ?

My parents are very strict they do not let me wear certain clothes cuz they are not proper and they yell at me for every single guy i flirt with even if I barely flirt with them they don't let me go anywhere alone with a guy or friend unless they are a relative cuz they are afraid of someone offending me, and I know they love me and all but I need advice as to how to get them to be less overprotective cuz I need a little more freedom.