NO is a word used in so many ways for adults it can be confusing to children.. can you say STOP to get her attention and then say the cabinet is not for EM then move her, Stop is a direct word. it means exactly that.. No can be no dont go nea.r no not now, no in a minute, No i want you to XYZ.

but i think your on the right track and it can take a while for them to "get It" but they will, my 2 have things they Know are definate do not touch or i can if im careful or its mine and i make the rules about my property.