I understand that! You can watch the Discounts sub-board over on the Resorts board, they won't let you miss anything.
However, I know there are a lot of excellent TAs out there, too. Make sure whomever you go with is a Disney Specialist. Local TAs and a lot of
AAA agents don't always know the ins and outs of Disney, and they may not watch for discounts for you. Be aware, if you use a TA, that person owns the reservation until you check in; Disney won't discuss the reservation with you or allow you to make changes to it.