There is so much to know and it can be a little overwhelming. I like meal planning. Find a good cookbook. The one I loved as a newly wed was one call "cooking for two" but it is published by a canadian magazine. Start small and simple in the kitchen. Cooking is easy but it takes practice so don't get discouraged. DOn't feel like you have to be the ultimate homemaker in your first years of marriage. I have a friend who only cooks one thing everyday (one side dish or main course) and nothing more. Take a class at a community center or find a good cooking show (I like Alton Brown on the food network 'cus he's just too cute!). Cooking doesn't have to be complicated. We love food with just a few ingredients stirred together and baked for and hour.
I like chore charts. Try to keep things in their place, pick up every night, never let the dishes get behind and always do one load of laundry everyday (if you have that much between you and your husband and don't have to go to a laundromat). Separate darks and lights. Wash towels, sheets, socks and undies in hot water. Wash jeans separately (they are hard on the other clothes). Take things out of the dryer and put away quickly so they don't wrinkle. And always read labels!
Don't worry, you'll get the hang of it.