Spin recovery is a good exercise in the right aircraft, but a better one is try this in a 152.
Full flap 30 1500 rpm and hold level flight as the speed slowly bleeds off and wait. Not below 3000 agl . It will suddenly drop the starboard wing and you are half way into a spin.
For recovery some left rudder to much and you are into a port spin. Immediately raise flaps cut engine ball centred then stall recovery. Instructor did this to me with no warning of what would happen, we lost 1500ft. Next time only 300ft. This is the classic stall spin turning finals. Was a better lesson than spinning which you need to do first. Taught me always add 5kt for the turns in the circuit and watch the air speed.
So next time in the 172 try the same configuration and procedure for I think it will be a more important lesson.