Last february I purchased a standard subscription for 36€/month, everything was fine but since my initial subscription I went back to school so I am a student.
How can I switch my subscription to student pricing when the current one ends? I tried to stop it, and I just got 2 free months (thanks ;)) but I still don't know how to benefit the student pricing after those two free months.
If you have any difficulties through this process (or if you are only partway through your standard plan and cannot cancel without a fee), then contact Adobe Customer Care and they should be able to help and change your subscription.
Unless there's something else you haven't mentioned, it would seem to make the most sense to wait until your current plan is due to expire, if you can – and then fully cancel your standard subscription and switch over to (re-sign-up with) the student/teacher plan.
All of this you should be able to do online, using the links given in the previous reply.