If you are close to the stall and use coarse application of aileron you risk stalling the 'up' wing.
Not if you are flying at a reasonable speed (1.3 Vs) you won't. And if you a flying slower than this, either fix it PDQ or go-around.
But returning to the OP opening question: If you are confused about any aspect of your instruction, you must ask immediately. The lesson loses its value if there is something you don't understand. And keep asking until you do understand. Remember, you are paying dearly for your lessons and you deserve value for money.
PM