Am I done for (Interview)

I just finished my interview and was unable to answer the maths questions due to me not revisiting maths for 4-5 years after O levels and poly.

Answered the logic question but later found out I gave the wrong answer

I'm not a good speaker so i felt the interview interaction was more of them talking (80%) rather than me (20%)

Then the interviewer decides to present me a science question which I was able to answer using my method.

Am I actually done for? I've always though a successful interview involves good interactions but I made it super awkward.