Stuck on nursery theme


I recently decided to paint the nursery since it really needed a touch up. I went to sherwin Williams and picked out a gray paint color and came home and started painting the room. After painting half a wall I decided I don’t like the color. It was too light of a gray. Now I have to start all over. I’m second guessing everything now. I wanted to paint it gray so it would be neutral. I’ve searched Pinterest and now I am also stuck on a theme. We find out in about a week what we are having. Is anybody else just not sticking with a theme and feel so overwhelmed by all of this?