I fumbled a YC backed startup interview - i will not promote

I got an opportunity to interview at YC company recently and that really lit up a spark in me. Thats what I always wanted as long as I can remember, After 18339938 applications and 16171727 cold emails - 1 opportunity. Everything matched - the work they do, the work i do, the work I’ve done. But I fumbled It was a live coding round - no LeetCode. I was given a problem statement and had 50 minutes to build the solution while thinking out loud. It was a first for me. What took me a while to realize was that t