So My teacher has assigned me to a embrochoure change :( this is the second time. First time failed. I was grtting progress but didnt stick to it enough and got back on my old embrochoure. Btw the change is from third upper lip two thirds bottom lip to exactly the opposit, two thirds upper lip and third bottome lip, but it kinda feels like my whole upper lip and a bit of my lower lip. Any how i am doing it improve my tone endirance and range.i have kind of big lips, ill post a picture on the bottom. And my teeth are straight. So im also getting a bigger mouthpiece because my first change was very hard and i always felt like there wasnt enough room to fit both lips with th e whole upper lip in. Sooooo anyways i know that the embrochoure change is like starting from zero and i kinda need some tips on how to strengthen this new embrochoure. Im going to be doing the pencil trick, mpc buzzing alot, long tones on low notes and arpeggios . I would like some comments tips experiences and more because im really nervous.