A lot of what you are dealing with now are what a good
Disney travel agent (whether AAA or not) would be doing FOR you. There is no fee from most TA (some charge a minimal fee depending on what you are needing, but they should always tell you up front).
You pick/determine your budget and your family needs and wants, then turn them loose to find you the best 'vacation experience' possible within those parameters. You can get specific step-by-step touring plan suggestions; explainations of how the FastPass system and the new My Magic+ bands work; special dining reservations can usually be obtained without YOU having to get up early in the morning trying to get through on the general public phone line 180 days out

; and much more.
Consider how much effort/stress you actually want to invest in the trip, then weigh that out against either a AAA RO discount, possible AAA package discount (remember, some AAA agents are very well versed in Disney, but many are not, so ASK if you decide to go that direction), or using a TA that has been to WDW (or DL, or on
DCL) many times and attended Disney Certified training.
It all comes down to 2 things:
1) COST ~ if budget is tight, you need to:
~ move your dates or
~ cut down the length of the trip and/or
~ use PH option and a good tour plan to get the most out of the days you are there and
~ decide what type of meals you want/need to experience (can you get by with having groceries for breakfast and snacks delivered to your room, then do QS meals and share some, perhaps booking 1 or maybe 2 character meals?
2) CONTROL ~ Do you feel the need to:
~ absolutely control every aspect of your vacation planning, or
~ maybe do a bit of dining planning and your own tour planning, or
~ perhaps you'd like to back off entirely and let someone you trust take care of every detail?
It is your family, your vacation, your money and your memories. Give it some thought. Then, if you decide on using an agent, ask your friends who have used a Disney Specific agent (whether AAA or not) to give you references. Otherwise, plan on a lot of phone calls (and long distance fees) and be satisfied with the results of all your personal efforts - which can be a reward in itself.
