Makers, we all make mistakes when we work on projects. If there were a time you can go back, what would you change and what advice you give yourself?

Imagine that you're about to launch on PH. Tomorrow will be the day. What are you doing the evening before? What are your last preparations? Maybe you're arranging the pictures in the right way? Or nervously rewriting your post for the 10th time? Or just drinking your tea, calm and confident?