Since you have no Disneland history, for sure do DCA first thing Sunday morning so you can get Carsland out of the way. Plan on spending Sunday morning into early noon in DCA, get wet on grizzly and return to your room for rest, and pool. Pan to enter
Disneyland for the rest of the night after you are rested. This would be a great time to take in night time Disneyland, don't plan on any riding, just take in Main street, fireworks, castle lights, Small world lights and Toontown lights. Just walk around and relax.
Monday morning do your favorites again in DCA,then head over to Disneyland and explore the west end of the park. The only other advice for MOnday is to make sure you see carsland at night. Tuesday, you are early Disneyland, knock out your choices in fantasyland, take advantage of fastpass in tomorrowland after that first hour is over, then work on your list of what has not been done. Wednesday is worth the money if you can be there, the whle park is open and a great time to re-ride your must dos.
staying on site gives you early every day, sunday and monday is DCA early, Tuesday is Disneyland, but skip early DCA on Wednesday and wait for Disneyland to open.