Today, while busy with something else, I voted to close a question of a new member.
Two or 3 minutes later, I landed on the same question and I regretted my review because it was rather in-topic question and a good one.
I think this is the third time I did such a mistake.
Q:
Why is not there a feature to cancel our wrong reviews? That will have a good benefit as moderators and other trusted users will have less erroneous reviews to handle everyday.