As you work with a software package, you will learn more and more. Thinking that you have to know everything about a subject or software program before you can use it is not realistic and may actually make it harder to learn the essentials. Let your skills grow as your needs and experience grow. All of these are good sources of information and tips for experienced computer users. It's Okay to Make Mistakes.
Some people are more comfortable making mistakes and learning from their mistakes than others are.
To the extent that you are comfortable making mistakes, it can be a very important part of the learning process. Making a mistake using a software program means nothing more than getting an unexpected result. Unexpected results become future expected results and each one adds to your experience and knowledge. Children are very good at learning by doing, but as we get older we tend to rely on other methods. Come to the workshops with the idea of asking questions when the material presented is not crystal clear to you.