A helicopter is a collection of rotating parts going round and round and reciprocating parts going up and down - all of them trying to become random in motion. Helicopters can't really fly - they're just so ugly that the earth immediately repels them. Learn from the mistakes of others. You won't live long enough to make all of them yourself. Trust your captain, but keep your seat belt securely fastened.
Good judgment comes from experience and experience comes from bad judgment.
Aviation is not so much a profession as it is a disease. Unfortunately, no one knows what they are. The only thing worse than a captain who never flew as copilot is a copilot who once was a captain. Be nice to your first officer, he may be your captain at your next airline. It's easy to make a small fortune in aviation.