soft 17 is a hit (or dd on 3-6) so A,6,J is a hit too cuz you stick with BS even after hitting
Card counting isn't for everyone. In fact it's for very few people. I don't think you're one of them.
Please don't take offense...
A6J is no longer a soft 17 (because it is not 7 when A is counted as 1). It is an as hard as it can get 17 and that is why you should stay.