Congrats on the trip! I'm going to offer my .02 on a lot of things, before I even begin to comment on the itinerary!
Airline prep. Since you haven't flown, I hope your Dad clued you in on what you need to know.
Don't leave home without your I.D. You won't be able to get through Security without it. I haven't flown JetBlue, but most airlines have online check in 24 hours in advance, so you might consider doing that before you go. There are also strict packing measures which mean no liquids or gels in your carry on items UNLESS you pack a 1-quart Ziplock with no more than 3 oz of liquids, like travel sized shampoo and conditioner. That means, no sunscreen, hairspray or other "product" for hair in the carryon. It's a pain, but I now stash my "contraband" in my luggage, secured in large Ziplock bags to insure for accidental bursting.
Now for the itinerary. Before I comment, I noticed you packed very full days. Keep in mind that if you are running around, early morning to late evening, you'll wear yourself out by the third day. Taking a break back to the resort midday can recharge your batteries.
And since there is a LOT of walking at Disney, I have found that I can fight blisters before they happen. I used to buy trial-sized antiperspirant in the "white solid" expressly for the purpose of applying to my feet only, before I put on my socks and shoes. Dove worked well.

It kept my feet dry, which also helped prevent blisters. Now, I have Glide, which I bought at a sporting goods store. That works great for the feet AND any areas that might experience "chafing".
And above all, stay
FLEXIBLE. Having an itinerary is great, but the worst thing someone could do is stay strictly to the "plan" until it stresses you out when things don't flow the way you've planned. If you are adaptable to change, going with the flow, you'll have a much better time!
Disney has started a new shipping cost policy when you're shipping directly from their stores. It's highway robbery. I would suggest you ask your Pop Century concierge desk how you might be able to have items shipped FedEx from your resort later in the week. That should be cheaper (especially if your DBF gets an employee rate!)
Ok, here we go!
I would skip DisneyQuest. It's fun, but unless you have 4 hours to spend there, I'd suggest spending time shopping and exploring Downtown Disney. You'll probably be tired from the travelling, and you can get some of the best shopping out of the way at the World of
Disney store. Earl of Sandwich...keep it! Yummy!
I'm not sure how good the evening EMH are. I've heard that they can be more crowded than the parks during normal hours. (I'm biased, as I spend just about every night of my trip at the Adventurers Club!)
Leaving MGM and relaxing at the hotel is a good plan. It can be an absolute zoo if you try to enter the MK at the "official" party time, so I recommend going to the MK from Pop no later than 4:30pm. They might have the party wristbands at the turnstiles, but if not, you can swing by City Hall to grab them when you show your party ticket. (There are plenty of opportunities to get your wristband.) I'd also suggest getting your dinner when you arrive at any counter service of your choice. They will herd guests staying for the party into one location while they close the park to non-party guests, but it will save you lots of time if you're already past security and the turnstiles.
I love the tuna sandwich at CHH!
One thing to keep in mind when you need to travel between locations:
Give yourself at least an hour. If you stay for the parade, you'll need to book it out of the park to get to your ADR. If you don't mind walking through the entire length of Epcot, you'd be taking the Monorail to the TTC and switching to the Epcot monorail. There are other ways to get there via the Epcot resorts and International Gateway, but it might confuse newbies who aren't familiar with the area.
skipping many days...
The Cirque show is WAAAAAY at the farthest point on the West Side. When you take the Downtown Disney bus, there will be two stops. Marketplace and Pleasure Island/West Side. Get off at the second stop and head left past the crosswalk. The show says it starts at 6pm, but be sure you're seated by 5:30pm. Cirque has a pre-show that starts when people are still arriving at the theater. (I just saw the "O" Cirque show in Vegas on Jan 14th. It was wonderful!)
As for Pleasure Island, you shouldn't have any trouble getting into the Adventurers Club or Comedy Warehouse. For the latter, you need to get into line about 30 minutes earlier than the posted showtime to get a seat. My favorite place is the Adventurers Club. It's really difficult to describe, but it's part show, part ad lib, and the actors will often play different roles of the club characters on different nights. The Main Salon will not have much action, but they do induct you into the club multiple times a night, teaching you the creed, the club "salute" and theme song. If you get to the Club between 9:15 and 9:30pm, you'll probably have time to make it into my favorite show in the Library: The Balderdash Cup. If that doesn't make you want to stay for more shows, I don't know what will!
Keep in mind that you make arrangements for the Magical Express pickup, they will want to drive you back to the airport 3 hours before your flight time. That means you might have a ME pickup time of 4:30pm. You'll want to be back at the resort no later than 4pm to be sure you have time to get your bags from storage.
I tend to think you packed a lot in, but you'll know if you're wearing yourself out too quickly. If you feel that you can push yourself for these full days, go for it. But always remember that your resort is only a bus ride away.
I went to WDW for my senior trip years ago, but the only parks open were MK and Epcot! (Yes, I'm showing my age!) I was able to push myself from morning to night, so maybe you're up to the challenge.