No panic, if you take out everything you need and forgot or no more time to do the recipe within the following hours, put back everything in the fridge.
Pastry could be tricky sometimes and with the years of practice ahead you will develop the same easy technic of your mother or grand-mother. It’s all about practice and believe me you will not be the first one to through away a cake because it did not come out correctly. You mom did and so your grand-mother.
If your baking in the morning, take out your ingredients the night before or at least 5 hours prior to. The eggs, the butter, the milk, all ingredients requested in the recipe and that are in the fridge.
Younger, I was never doing that. After having my dad telling me a hundred times, it’s automatically. And do not worry, no one will be sick.
In the summer, if you don’t have an air conditioner, take them out only 2-3 hours prior.
And last, don’t forget to wash your eggs before braking them. It’s normal, they’ve been manipulated by stranger. With bacteria, you can never be more careful.