We booked our April trip 8 days in advance. 8 days. My mom walked into my house, offered to send us to Disney, and the next day I booked the trip for the following week. It was amazing. We got all the ADRs we wanted (not a ton- but there was plenty of availability with checking frequently), we got FP for everything we wanted except 7DMT (and there were a few available, just in the evening) so we just did it at RD. We even got a same day FP for FoP. It was SUCH a fun trip- I am such a planner and plan so far ahead but it was great to do it all quickly too! My best advice would be to grab what you want even if the time isn't ideal, and then modify. I did spend a good amount of time checking and reloading and updating plans over that week, but, it was a week so that's to be expected. You have plenty of time!