Potion Permit

This can not be unlocked on the first patient. Instead continue the tasks given to you until you get to the second patient. Skip the diagnosis and go to sleep. The number of days you have to cure the patient is indicated above their heads. You dont need to check it instead just continue sleeping. A cut scene will occure once a patients number reaches 0. Skip the cut scene, run back inside and go back to sleep. Do this 10 times to unlock Being Forgetful... and Being a donut.

I recommend using a new save and using the skip option when available to get this done quickly and to avoid losing trust on your actual game.