Read Your Recipe in Advance
It is a common habit of amateur home bakers to read the recipe as they prepare their dish. While this is not wrong, it is important to read it fully before you even start. You need to have all the ingredients ready beforehand, and you need to know what to do at what part and which items you need before you get started.
Reading the recipe in advance will allow you to double-check that you have all the ingredients on hand. It will also list key instructions such as prepping certain items in advance, preheating requirements, or even about items that need to be kept cold until use. The last thing you need to find out is that your milk needs to be ice cold halfway through your recipe.