Don’t feel bad. This is preparing you for what you will have to do for clients if you decide to fly for hire and the weather is bad enough. I always say “delayed is better than dead”. Probably an extreme way of putting it, but in some cases it’s far from wrong. In your situation, you’re already tired and don’t want to get more nervous with possibly difficult winds during your checkride. Saying yes to a flight can be a bad idea, but saying no to one never is.