Hiya Julia!
Welcome to planDisney! Julia, you sure seem ready to go for this trip! I love that you have your tickets and MagicBands linked to your
MyDisney accounts.
It sounds like you did everything you needed to do. What I would do to double-check is visit your
Tickets, Passes & Memory Maker page. See that every ticket is assigned to every Guest who is joining you on this trip. Make sure their name and chosen character icon are linked to the appropriate ticket. I would then confirm that the
correct bands are linked to the Guests who are traveling to the Parks. Each Guest's name and character icon should match what they used for their tickets. You can have more than one band linked to each person. I have three bands linked to me as I like to change out my bands depending on the Park I am visiting and my outfit. If you purchased a date-based ticket (which it sounds like you did) then you do not need to worry about
theme park reservations. If you double-checked as I stated above then you are good to go!
You should be able to now head straight to the Park entrance and "tap" into the Park, put your finger on the biometric sensor, and head on in. There is a chance they may take your picture on the first Park entry day but it does not always happen. If you have little ones with little fingers make sure to stay with them as you may have to use your finger for the sensor. I always have one hand designated for my daughter and the other for myself as her finger never works with the machine. If there is an issue at the entrance there will be plenty of Cast Members who can look up your account and fix it up for you.
Don't worry Julia! You did all of the hard work already and I have a good feeling that it will all work out for you. As noted at the entrance to Magic Kingdom Park, I hope you are prepared to "...Leave Today And Enter The World of Yesterday, Tomorrow, and Fantasy." You have a magical time awaiting you and I hope you savor every bit of it.
Have a magical time!
Happy Planning!
-Nimmy