Help! Severly burnt a meal in my microwave!?

I really need some help. I basically incinerated my food in the microwave! instead of a few minutes, i did 30 minutes! There was so much smoke and now there is a horrible stench of that 'burnt popcorn smell' My microwave itself is Yellow. i've tried the nail polish, the baking powder. i haven't tried the vinegar cause basically - Too scared to use it! and boil something in it! Help pleaseeeeeeee