YAHOO SEND ME DA MSG ABOUT DA IM WINNING 3 MILLION IZIT TRU?

You didn't win anything. Yahoo didn't send it. There is no such lottery... and you didn't enter any online lottery. It's a phishing scam... meant to get personal and banking information from people who are gullible enough to fall for it. Yahoo is quite aware of it as similar scams have been around forever. Just delete it!