My post is to share my mistakes and hopefully this will help yall prepare better.

I made one big mistake and this was before my interview started, I was low on confidence, due to fear of interviewing at my dream company, will i make it or not. At the time I didnt realize it but it got me during 3rd coding round and carried onto last round. As soon as my call ended between 3rd and 4th round, I took a sip of water tried to calm down and thought about the porblem once again and realized the solution(optimal) in 2 mins. Unfortunate for me but I am staying positive.

My advice to you all, go to the interview with no expectations, dont let thoughts about failure get in the way of your own success. Keep your mind free, this is much easier said then done.