Anxiety is my worst enemy

I have done 200+ leetcode problems . I started off with neetcode 150, did it twice,and I am keeping up with leetcode 1-2 problems everyday. I am an MS CS grad student at T20 CS school and have landed

I have done 200+ leetcode problems . I started off with neetcode 150, did it twice,and I am keeping up with leetcode 1-2 problems everyday. I am an MS CS grad student at T20 CS school and have landed 0 interviews. I had 1 google interview last year which I bombed bc I was anxious. I have a couple of questions: --> I do not know why new questions intimidate me but the minute I see it im like idk? How do I overcome this? --> Is it okay to use a pen / paper to draw out questions and find answers during an interview? That seems to really help me because I lose train of thought once I start coding. Do you guys have any tips for this? Thanks in advance :)