Microsoft Developer interview questions

Normal process as you would think, first an interview with HR of around 30 minutes, then a codility OA with 3 exercises which were completed without issues. After this, I was moved to the 3 rounds of interviews and here is where everything went wrong for me. I got super nervous on the interviews and as expected, I was rejected. To be fair, the questions were not that hard now that I think of it, it's just that I was not prepared s I should have been.