Hi faithful,
I'm getting married next month and I know exactly what you mean. Many times I just wanted to get it over with and became super stressed. When I usually got stressed, it was because of what someone did or didn't do or I felt things are not what I wanted. It helps to keep in mind that this day is about you and your future husband making a promise before God. As Jena said, the rest doesn't matter as long as you remember this is an event to above anything else glorify God. I hope you stop feeling this was and that God helps you look at things differently. My future sister in law told me when i got engage " remember to enjoy planning, you only get to do this once" I try to always remember this too and it makes me to at least try to enjoy it of course the only way I can do this is remembering the why of this wedding.
Congratulationg on you wedding, I hope you can see things differently and enjoy the months of planning.
God bless you.