Confidence

Confidence must come from within yourself first. If you feel scared and shaky you will project that onto whatever you are doing. Believe in yourself and know that you can accomplish whatever you put your mind to. Study hard and work hard! If there is an area you feel a little shaky on, practice, practice, practice!! Ask for help. The more you do something the easier it becomes - then your confidence increases! The first step is to believe in yourself and don't let anything get in the way of your goals. You can do it!! Good luck!

Like stated above, learn your material thoroughly. Not just 'the answers', but what are all the possible things that can happen (or go wrong), and how would you respond to each of those circumstances. Then you should have confidence and place the appropriate focus on each step you are doing. They are not all equal, and there is no need to stress out by trying to be perfect in every step.

Start learning by the Pareto theory, 85% of your focus should be on the most critical 15% of the steps. And then branch out from that after you feel like you have mastered the critical 15% of the steps, always looking back to the most critical steps as you master the additional 85% of the steps. This will ingrain the critical steps and help you understand the minor operations above most others in your class.

And when classmates act like they are not studying and talking when they should be studying, ignore them and don't even think about what their agenda is. Focus, focus, focus and you will do good.

Just remember, those who fail at first and come back often learn more than their classmates predominantly since they have a true passion to learn. Good luck.

If you knew the material and tested fine then that sounds like an unfair grading system. Hopefully this time you're signed up at a school where they are more reasonable and objective. Since you've already been through the program before you'll have a head start so to speak and you should do fine this time around.