Hi! I'm new to this, too. I have two bachelors in Genetics and Biochemistry... I worked in a research lab for 4 years and decided it wasn't for me. I am starting my CNA classes on August 15th and I feel... Well.. Nervous. Not sure why, I guess it's because I'm switching fields and it's all kind of new to me. I know this is easier said than done, but you have to find confidence in yourself. You don't need validation from anyone if this is what you want to do or not. Only you can give yourself that validation. When someone is coming down hard on you, take the criticisms in a way you can approve and it's likely that you'll never see anyone in your CNA class again later, so don't worry about embarrassing yourself. Remember, this is YOUR career. YOUR life. Don't let nervousness rob you of that. Don't focus on what you do wrong, focus on what you do right. Try to stay positive and find your inner confidence and let it out. Let your personality shine!