This reminded me of a conversation I had with a guy with about 20 hours of operating a tractor over a few months. He told me he knew what he was doing and didn't need my advice and a few days later rolled the tractor. He survived and only got banged up a little bit.
Another gentleman was recently retired from the city and bought property nearby to live on for his retirement. He told me he was going to live on it the rest of his life. And he did, but he rolled his tractor a few months later and did not survive.
Being overconfident (arrogant?) (in many endeavors) can be deadly. Always remember to think ahead and consider what could happen.