Just go with the fact that you will not be able to see everything on your first trip. If you attempt that, you will be under too much pressure and not enjoy the moment.
When there is free dining, its a good idea to make adr’s to guarantee you get to enjoy some of the sit downs. Just look at the menus at All Ears and see what you like. Make a list and then call in June to see what’s available and work around that.
Park Hoppers is a great idea. That way you are under no stress to get adrs for the park you plan for that day. We often hit one park in the morning, go back to the resort for swimming and relaxation, and then end at another park in the evening. It makes it so much more relaxing not having too tight of a schedule. Also, a couple of times we planned on being at one park, and it was packed, so moved onto the next, with much better crowds.
We always make a small list of two must sees per person per day at the park we are going to. That way, everyone gets to do something they like, but it’s again, not too overpowering. The remainder of the day is “go with the flow.”
Enjoy, and remember if you stick to too tight a schedule, all it does is bring pressure on everyone, and then it’s not a vacation.