put the toilet paper up higher, put a lock of the fridge and cupboards, put some of the gates around where you have to lift them to open then not climb over them.
how much is she sleeping? you siad she slept for 2 -3 hours after the time out incident. Could it be that she is overtired and she is acting out? go for a walk, read books, craft, playdough, get her helping you with washing and cleaning up.