Hey howdy hey Ana and welcome to planDisney!
I am absolutely thrilled you are thinking this far in advance for your trip to Walt Disney World Resort. I feel like planning a trip is a big part of the enjoyment! There is so much to research and look into at this point and you are right where I recommend people to start, think about the time of year for your vacation and the resort you want to stay at.
Booking trips this far out, which you have alluded to, does require a
phone call to Disney at (407) 939-1936. You will be required to put a deposit down which is the equivalent to the first night stay plus tax. Per the
terms and conditions, you can cancel this reservation with a full refund 5 days or more from your date of arrival.
Another big tip that I always tell anyone is to keep an eye out for any
Special Offers that Disney puts out. If you see that new Special Offer applies to your reservation, you may be able to have this discount applied to your reservation through a link on your My Disney Experience account. If you do not see a link, you may see a phone number to call to have a Cast Member help you through this process. Good luck and have fun planning your trip to Walt Disney World. If you have any further questions, feel free to let us know. We love any excuse to talk Disney!
Happy planning,
Nick