Painted the inter of my new home with the wife this weekend and she went with a mustard color for 2 of the walls, looks good during the day and at night it looks like Baby Crap. She wants to re-do it with a shade of orange.
firstime, welcome to the forum. You shouldn't have to prime, as the color should cover with two coats. You can repaint as soon as the recoat time spec'd on the can of the baby poop has passed. You're good to go.