Hi Alina, welcome to planDisney!
I have great news! You can certainly reschedule your reservation to another date, as long as your theme park tickets are not expired. And it's super easy to check your ticket's expiration date. First load up your
Disneyland Mobile App, click the three horizontal lines in the bottom right-hand corner, and select "Tickets and Passes". You should see your tickets along with their expiration dates.
Next, you'll need to cancel your current reservation. You can do this by logging in to your
Disneyland Resort account, selecting the "My Disneyland" link, and then clicking the "Ticket and Reservation Details" link. Select the reservation you wish to cancel and click "Cancel Reservation".
Finally, when you're ready to book your new reservation, check the
Theme Park Reservation Availability Calendar to ensure there is availability at the date and park you wish to visit! If there is availability, log back into your
Disneyland Resort account, select the "My Disneyland" link again, and then click the "Ticket and Reservation Details" link. You should see a link that says "Make Park Reservation", and that's it, you're good to go!
I hope this helped, but if you have any other questions, please visit us again!
See ya real soon!
Jin