Hello there Carole,
Welcome to planDisney! I'm so glad you stopped by with your question and I'm thrilled to hear that you have a trip to the Happiest Place on Earth coming up next month! A four-day trip is a great length to make sure you can see and do everything you want without feeling like you're in a rush.
To visit the parks, you need both valid
theme park tickets (which you have) and
theme park reservations for each day you plan to visit. It's this latter item that it sounds like you'll still need to make for your trip next month.
To do this, I like to use the
My Plans page on the Disneyland Resort website! On this page, you can create or modify all the different kinds of reservations that you might need for your upcoming trip - including theme park reservations.
When you're on this page, you can hover over the "Theme Park Reservation" bubble and select "Make a Reservation." This will take you to a new page that will walk you through the process. Once that is complete then you're all set for your visit!
If you also know that you want to make some
dining or
enchanting extras reservations, then the My Plans page is a great spot to make those as well.
Thanks again for your question, Carole! You're on your way to a great big beautiful trip to the Disneyland Resort.
Have a Magical Day,
Greg