NEED SOME HELP

[WARRIOR0621]

FOR THE MARKET PLACE MY BOX IS GETTING FILLED UP WITH POST I DID FOR STUFF TO SELL HOW CAN I GET RID OF THEM TO MAKE MORE ROOM

[TheExpertish]

Hey, radio humper! Turn the volume down. For starters take your caps lock off. If you need to clear out your inbox (which would be a surprise) check the box on the right, then scroll down to the bottom to "Selected Messages:", then scroll down to "Delete", and press "Go".