It is all going to be ok! I promise! I planned my whole wedding, start to finish.. in less than 6 months! It is all going to get done!
Dont worry about your dress.. start look, I would even start trying some on.. see what kind of style you like.. you can always have it altered when you lose weight..
Ask you friends now. The more notice they have.. the better.. and then they can start helping you with some of the things on your list and you wont feel so overwhelmed
Start by making a list of things you want to get done.. even if you think they are small.. you will feel really good when you start checking things off