Making the most of your cards

4 3 2
2
K Q 8 7
7 6 5 4 3
N
W E
S
A K Q 7 6 5
A K Q
4
A K 2
West North East South
2
Pass 2 Pass 2
Pass 3 Pass 4NT
Pass 5 Pass 6
End
6
by S
Lead: Q

Opener's 2 is forcing to game, and North encourages because the hand is strong: good diamonds, a singleton and a losing trick count of eight.

Plan the play.