1. Your student passed the grade of 10, so your level can't guide him at all.

All piano teachers know that in fact, in the life of teaching piano, they don't have enough time to practice, so their level can only be maintained or reduced.

3, piano amateur level 7, who will ask you to be a teacher, even if you can, I believe the salary is definitely very low.

4. Piano teachers are basically all graduates from conservatory of music, all of whom are professionals, while yours are amateurs. The difference between professional and amateur is too far.