ok, take a deep breath!! it'll all work out...
we talked to most of our guests about a year out from our wedding. we sent out electronic STDs and make your deposits about 11 months prior to our date - it wasn't ideal, as we only had a short window to get those deposits down and hold the room block for the discounts we got. But it worked and we got everyone booked. The initial deposit was $50pp, non refundable.
We have a website which has all of the details on cost, travel agent, resort info, etc. We put the website on the STD, and directed everyone there for more info.
Formal invites weren't absolutely necessary, but I wanted them b/c I had to do an electronic STD. we also needed to get everyone's entree selection for the private dinner/reception, and RSVPs for the welcome dinner at Cocotal. I sent these out in late July, with a September 1 due date (and got most of them back from our "yes" guests, and a few back from our "no" invitees).
make lists, and start checking things off. prioritize the things that matter most to you, and let go of some of the small things. No matter what, your wedding will be amazing!! oh yeah, and take another deep breath!
This is how I feel right now.....like I have so many decisions to make and things that need to be done and I just don't know where to begin. I think I asked this before of all of you, but how far in advance are you sending out invites and are you sending out a reminder after that or is the invite it? I'm a hot mess right now!!!