Thank you for the suggestion My teacher, to the same question told me "in sequence!", knowing full well that 'G' is hard. He told me that smiling.I have been taught to learn the F# and then the A. After those two notes the rest should come easy.
I got the F# consistantly down with the student tenor i play.Keep faith JTMusic, you will succeed!
It is just a question of perseverance (a good teacher sure helps too). I am not far on the "altissimo" journey, only got the F# down and I still need to work on it too. But it is a first and it build confidence!
Are you playing alto or tenor? I can now do it on both alto and tenor but it took me a few more weeks on alto. I worked on it for many months before I finally heard that first note.