Account Migration has not begun. There will be an in game message when it's your turn to move. Do not fall for any third party websites that are telling you to migrate NOW. They're trying to steal your information.

Hey mojang, I have this account I used back in like 2012 and I’m trying to sign in but I don’t remember my security questions. I try to reset them, but I’m not receiving the email confirmation to reset them. What should I do?