Hello, Paige! Welcome to planDisney and thanks for your question!
It sounds like you have booked a
Disneyland Resort vacation package! How exciting! With your vacation package, your actual theme park eTickets will be automatically linked to your Disneyland account four days before you arrive. You'll also receive vouchers for any magical extras associated with your package electronically. Since you've already made your theme park reservations, you're good to go!
The only other thing to do in advance is to
make dining reservations for any table service meals you would like to enjoy. Reservations can be made up to 60 days in advance online or on the Disneyland app. I strongly suggest making reservations as soon as you are able as many restaurants fill up fast. Some of my favorite table service options include Lamplight Lounge, Wine Country Trattoria, and Catal.
I hope this helps. Have a magical time at the Happiest Place on Earth!
-Linda