A few days ago I read that Michael Burry sold all his positions. This made me want to sell all of mine as well, or atleast sell half of mine

But I didn't act on this feeling, and now the market is down to 4000. If I had sold, I would have sold at around 4250. Now I am experiencing some regret of not following my instinct and instead caved into doubting myself.

Does anyone else have similar experience?