Need a clear head

I feel cluttered. I can't seem to get a clear vision of what the wedding will look like.. it's driving me insane!! I don't  know if it's just nerves or what but I just see clutter!! Since everything is DIY projects I have alot of stuff done but I need to start doing moc ups so I get a clearer picture. Did anyone else have this problem or am a just crazy?? I finished my table runners today, and I have the flowers done, the candle holders, napkins, and thank you notes... I feel confident that everything will get done, but for some reason that's not helping me... :(