Need Help Now

I need help, I am horribly bad at planning, and I have to get started planning this wedding. I want simple, inexpensive, yet nice. Please give your ideas, especially if you have a place that you have been to a wedding, that is in Dallas, Plano, Allen, Frisco or Mckinney. I would love to have my own caterer, so many places wont allow outside vendors.
PLEASE HELP!!!