Pre-Wedding Panic

I got my corset bra thingy and the thing to make my dress go poof...but I still don't know what it's called, lol. I am realizing that I am coming up on the 4 month mark and I have so much to do still that I am starting to panic a bit. I am a list maker by nature so I guess I will have to start making a list to feel better although I may feel more overwhelmed. So much to do and don't know where to start.