Good Luck,
I went through the same thing! I think there is so much pressure put on finding the "perfect dress" that I kept thinking when I didn't cry or become overwhelmed with emotion that this must not be the dress & i was down to less than 4 months left..i found one i "liked", it was light--comfy--pretty..so I said that's all I need. Maybe i'm just not going to breakdown in tears, which really isn't they type of person I am anyway...and I just bought that dress that very day.
Honestly there are so many pretty dresses out there we could all wear a different one every hour, but your going to look amazing in whatever you choose as long as YOU love it & are comfortable.
Good luck & i know whatever you choose will be great! Oh, & make sure to follow up with us & let us know what you choose!!!