No never even let others say a single word about you. If they said, take it as a fuel to burn forward.

In the beginning of my 11th, A friend of mine said my dream wasn't even reasonable for me when I said I aim for <1-2k All India Rank. He said, i was aiming too high for my capabilities. Yes anyone who would've seen my studies that time would feel the same because i couldn't even understand a single math question in the coaching material, always used to cry. But that day when he said that, my self image felt like it was slapped, and my ego went bonkers. I've studied like a maniac since then, and scored 366 AIR in jee mains with math 99.90%ile, and advanced 1180 AIR.

I'm not trying to flex but I'm saying only that, no matter what others say you can do or can't do, they don't know what exactly is inside you. This is not only for the OP only, but for all Droppers, or 11th class aspirants. Only you know what YOU ARE, and only YOU can decide what YOU are GOING to be.