Dear madam,
In my view, your two year gap has a bit shaken up your confidence. But it is manageable and is only passing phase.
You are struck with irrational fears.
Suggest you recall the past interviews you have faced. Pose those questions to yourself and write down answers. Talk to your peers who are in similar roles as yours and find out what has changed in these two years in terms of job role. Then incorporate those relevant aspect in the possible questions which may be asked and write down the answers.
Rehearse your replies loudly by sitting in front of the mirror as if you are facing the real interview. Do it again and again till you get sufficient control over your speech, vocabulary and confident posture/body language. Then do video shooting of this mock interview and refine your presentation, dress , posture tone and choice of words.
Take guidence from some knowledgeable person by showing this video.
This process,I am sure, will give you immense confidence.
Hope you will grab new job soon and wish you good luck.
Regards,
Vinayak Nagarkar
HR and Employee Relations Consultant