CA9 is reachable. I have a player who was 2/8/2 and age 15 when he arrived with my team. Now he is 7/8/2 age 19 and should be CA8 later this season.
The answer to your question depends on how much the player is played. If possible, you'll want to play him in every match you have, competitive and friendly. If you do that, I think your player will be CA7-8 at age 21 and reach CA9 1-2 seasons later.
So you think it is a reachable goal ?? that is fantastic, I am planning on playing him in every match
But you might have better facilities
my felicities is
Training Facilities :
Very Good
Fitness center :
Very Good
and this is my trainer level:
Do you think it is reachable with my level of team ?