Q.1 What is your opening lead?
Q.2 I chose ♥ A.P played ♥ 7 declarer 3.How do you continue? (You are playing for the 1st time with this P and your agreement is std carding.You are unaware whether this is count or attitude.)
Q.3 I presumed attitude and continued with ♥ K .P played 6 declarer 2.I continued ♥ 10.Declarer took Q and continued ♥ J.P discarded 2 small ♠.
(No peter).Declarer then played small ♠ .Do you take K?
Dummy at this stage is ♠ Jx ♥- ♦ KQxxx ♣ 9x
My hand at this stage is ♠K10x ♥- ♦ xx ♣ A1087
Q.4 I ducked ,declarer played J and P took A.P now played small ♣ declarer K.
Should I take ♣ A?
Q.5 I took A; checked with declarer whether he was really playing 15-17 NT and decided declarer now has 5 ♦ tricks and 2 ♣ tricks in addition to 2 ♥ tricks already taken and cashed my ♠ K to hold him to 8 tricks.Was it correct?
Q.6 how many mistakes did I make?

Help

Bidding
p-p-1NT-p
p-p