How do you recover from a bad interview?

I have an impressive resume on paper. Over a decade of experience in tech, product management.. and a masters degree from a top 100 university in the world. I had to take 6 months break from corporate world to recover from depression (it's genetic). I am getting calls for some senior positions based on my resume, but I am doing terrible in interviews. Like really bad.. and I feel worse for days about it, dissecting everything I said.. how do you recover from bad job interviews? guilt, embarrassment and what not!