This is my 4 year transformation
I started mewing when I was 14(and 49 kgs) and in the recent one I'm 18 (and 73kgs). This transformation may not seem as impressive as the other posts I've seen people around here have gotten similar results in months or a year.
I mewed wrong for almost all the years, and it is only in the last 4 months that I started pushing the tongue against the upper jaw properly.
Prior to that I did chin tucks, biting pens to strengthen jaw muscles, or chewing on gum hard, and one thing I did the most was that I hollowed my cheeks out and kind of pushed my chin outwards for alot of time I thought I was mewing correctly but after learning the correct technique and realising that doing "my way" would not develop the upper jaw properly, I changed my habits.
My body fat is at an all time high right now(it's not unhealthily high though 😭) , but I'm happy that because of my habits my side profile looks way better than before.