Hey everybody! I've been having a lot of fun planning all sorts of aspects of our trip, but can't seem to decide what parks on what days!

I'm still waiting for January calendar, but need to wrap it up soon to try to make ADRs! Any help would be appreciated!
12/26-1/5
Driving from NY, but spending a few days in NC for Christmas on our way down.
Arriving around 6-7pm on the 26th.
Group includes DH, me, DS 12, DD 11, DD 6, DS 4
DH & I have been there twice, but 1st time for kiddos.
Staying at Hawthorn Suites Lake Buena Vista.
We have basic (non-park hopper) 7 day tickets for Disney - planning 2 days each at EP, HS, & MK, one day at AK, two one-day tickets for IOA & US.
Dining Plans:
DTD - T-Rex
MK - CP, snacks @ Aloha Isles, Pecos Bills/Cosmic Ray's/Be Our Guest
HS - Sci-Fi, H&V F! package, Starring Rolls
EP - Akershus, Boulangerie Patisserie. Haven't decided if we are doing a CP Package yet or not.?.
AK - Flame Tree
Resorts - Whispering Canyon, Beaches & Cream, Chef Mickey's, O'hana, Riverside Mill, Sassagoula Floatworks
IOA - Confisco Grille, Butterbeer @ HP, Comic Strip Cafe
US - NASCAR Cafe, San Fran Pastry Co.
12/26 - Dinner @ T-Rex & explore DTD
12/27 -
12/28 -
12/29 -
12/30 - MK (for NYE fireworks)
12/31 - HS or EP (for NYE fireworks)
1/1 -
1/2 -
1/3 -
1/4 -
1/5 - Leaving
I don't know if you need any additional info, but feel free to ask any additional questions! Don't know why this is so difficult! I have individual days planned out, just can't decide which day to do what?? Thanks for your help!