In order to understand how clear aligners work, you should realize that when you change into a new set of aligners, the aligners are in the shape that your teeth are going to BE, not the shape that the teeth presently are. Therefore, depending on which direction each tooth is being moved, you...
Before your braces come off, I would express your concerns to your dentist or orthodontist. If your dentist or orthodontist does not answer your concerns, you could seek out a second opinion, preferably with an orthodontist.