Right now (halfway through my treatment plan) I'm having slight trouble keeping my lips together with the aligners in. If I don't pay attention to it, they part. My main concern is that my front teeth are going to be pushed forward much more than they already are. Could this make it hard to close my lips? Side question - could this change my lip size? (The pictures are of my top teeth at set 1, 10 and 20) Ps it's kind of hard to ask my 'dentist' because I'm doing this through Smile Dirrect