Mother in law telling me what i can and cannot wear...help?

omg i dont know what to do. I just got married to an amazing man 8 months ago. I am 18 and he is 20. We are saving up money right now to get an apartment and are still living with his parents. I wore flowy tshirt today and a denim miniskirt with flipflops it was hot outside. Later on when i had my PJ's on she walked up to and told me i should watch what i wear and i make her feel uncomfortable , that i am married now and shouldnt dress like that and that i am starting to dress like my mother who dresses very innappropiate. i feel like if i stand up to her she will kick me and my husband out early.... i dont know what to do, i feel like punching a wall, ripping up all my clothes, screaming, and crying all at once. Please someone help me. I am a very appropiate dressed girl and a christian at that too it was just hot out today and the skirt was 5in above my knees. This is BULLSHIT! HELP PLEASE