Get a new instructor, at a different school.
You should be fully controlling the aeroplane well before solo.
Any instructor and school of any quality will have made you read the Pilots Operating Handbook, which describes the controls in detail.
Any instructor of any quality will be briefing you properly on all of this before flight, and debriefing you afterwards so that you understand it all.
Any well run school will be insisting on all of this and monitoring the instructor's standards.
You are not being properly taught and supervised, and the school is not supervising your instructor. Stop wasting your money, even if you pass your PPL at this institution, you will be dangerous.
(And the C152, along I think with all of the other nosewheel Cessnas, has a steerable nosewheel, not many common aeroplanes have a castoring nosewheel - the Grumman AA1/AA5 family are the main exception.)
G