Use this link to find out more information but at this time, Disney has temporarily paused ticket sales. https://disneyland.disney.go.com/experience-updates/#drawer-card-park-reservations
I personally would book a Hotel reservation; there is a hotel next door, The Disneyland Hotel. Then, I would arise early in the morning and arrive # The Park ASAP.
https://disneyland.disney.go.com/experience-updates/#drawer-card-park-reservations
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