Hello there, Katia! Welcome to planDisney. We love helping Guests, just like us, get their questions answered.
I wish I had a better answer for you regarding purchasing a ticket for Disneyland Resort. Unfortunately, there is not an option to make a
theme park ticket reservation until you have purchased your ticket. Currently, there is some availability for reservations on January 13, 2023, but this could change at any time. I agree that it would be risky to wait to purchase tickets until you arrive in case there are no reservations available, but this may be your only option. The only other option I can think of for you is if you would be able to purchase a gift card that can be used like a credit card for online purchases. This would allow you to make the purchase now when there is still reservation availability.
My suggestion is that as soon as you get to Anaheim, you stop by the Main Entrance Ticket Booths to try to get your ticket and make theme park ticket reservations. I would also keep checking the
Theme Park Reservation Availability Calendar so you will be able to see if there are reservations available for the day you are wanting to visit.
Katia, I wish I had a better answer for you, but I am hoping there is pixie dust and magic surrounding your visit and that you will be able to get tickets and reservations.
Carrie