Advice for writing vows?

I'm getting married tomorrow and I have written a few rough drafts. We want to keep it sweet and simple since this is more of an elopement and we have our real wedding planned for next year (for very important reasons.) I'm so nervous to tell him how I feel in front of everyone, and I'm pretty scared when it comes to speaking in front of people. I need advice on the best way to write your vows & the actual process of speaking those words out loud!