How to deal with parents who overreact

Mom is mad that i ordered alcohol, not only is it rare but it is something i havent done in almost a year and she acts like im an alcoholic for it and even tries to take my drinks from me that are unopened after i have had like one cider.

She is obviously overreacting but how do i get her to cut it out and not touch my stuff. We all share a place its not her property i pay rent and don’t appreciate stealing. My room doesnt have a lock and i dont know how to put one on either but i dont feel like i should need to.

I also havent been intoxicated at all even tipsy since early October when out anywhere.

Dont tell me to move out either that is NOT an option