WIll IPR Filing Create Enough Space to Make my Teeth Go In?(photo)

My purpose of invisalign was to make my teeth go in because my lips stick out. My dentist says she can do IPR. The total space created on my upper teeth are 5.7mm and 2.4mm on my lower teeth. I am not sure how much mm in total my teeth will go in as 5.7mm space created doesn't mean my teeth will go inwards 5.7mm. The video seems like it won't make much of a difference at the end of the treatment. Should I request for extractions or is IPR good enough to make my teeth go in?