stop buying things I don't actually need

I have made a pact with myself that I will not buy anymore toiletries until I have used up the huge stash of things I have in my room and I’m doing ok. If you ignore the 2 purchases I made online yesturday at about £15 a piece!!!
In my defence I have not bought any shampoo or conditioner or shower gel, soap, toothpaste for weeks and I still have plenty in my stash to keep me going for a very long time. The power of a BOGOF offer is one I am still yet to conquer!!!!