[vhcook]

Don't panic - everybody was new at some point, and this will pass.

It looks like you're on a experienced team, so there should be plenty of people who do know what they're doing, and they should be willing to teach you. Walk up to one of your mentors or experienced students who is doing something interesting-looking and ask if they can teach you what they're doing (don't ask while they're actively cutting metal -- wait for a safe moment). With any luck, they'll show you how to do it and/or have you do it with them walking you through the process. Mentors love students that actively try to learn new things -- it's a lot easier to help someone who is asking questions, and we wouldn't be here if we didn't want to share our knowledge. If you don't have anything to do, ask someone for a job.

Mistakes are part of the learning process. Just pay attention to the safety rules, ask questions when you're lost, and read the manual, and everything will be ok.