Challenge for your first week: Ditch the grains in your diet.
No wheat, rice, corn, oatmeal or anything that is categorized as a grain. Target your favorite proteins to fill up: eggs, chicken, beef, fish. No tofu.
Get off the bread an start to really listen to your body. Notice if your sleep improves. Notice if Blood pressure or other Gastrointestical issues clear up. Keep a journal and make a note of it.