Saying nothing is the best policy. You cannot be disfellowshipped for being inactive, but can for apostasy, and discussing any doubts you have will earn you that label. If they come back and ask how you are going the answer is simply, "I'm fine, I will see you at a meeting when I am ready." They will ask if they can help, and just keep saying, you are fine and there is nothing you need at the moment.
They may get belligerent and say you are risking everlasting life, and how you won't see your parents in the new system. Do not fall for that trap. Just keep repeating that everything is ok. Their attitude may make you angry, and your pride may make you want to stand up for yourself, but there is nothing to gain from talking back to them, and your parents to lose.