I'm sorry you didn't have the trip you wanted. I can feel your frustration in your post
I would highly recommend reading mesaboy2's
Fastpass+ Basic Info and Strategies thread for your summer trip. It is a fantastic resource of information and tips on how to best use FP+.
I would also think about maybe adjusting your strategy for your summer trip. Crowds will be high in the summer, so Rope Drop will be very effective. I'd suggest one of two things:
1. Rope Drop in teh mornings, but head back to your hotel sooner in the evening so everyone gets the rest they need.
2. Alternate Rope Drop mornings with late night evenings. If you do a late night, sleep in the next morning and then do Rope Drop the next day. I don't know what the ages in your family are, but if you can do late nights that kind of schedule might help even out the tiredness.
I do very much sympathize with how your feeling - I truly hope that your trip in the summer will be better.