I have to agree with all previous poster re. get another instructor. Although I suspect it's more that you 'think' they are on the pedals instead of actually doing it.
I'l go with it. A C152 or C172 for that matter, will travel in the direction that it is put onto the ground on the main wheels, unless rudder/brake is applied.
There is no more to say on this. Line it up and put it down.