Do not wait until the last minute to charge. You won't have enough time. Don't think that the Jornada has everything, because it doesn't. Expect the unexpected. You are going to learn a LOT about technology.
Hard resets are pains.
Don't get mad if the laptop breaks, it can get fixed. Always charge your computer at home and not at school. Make it a tool and not a toy. You will have many challenges awaiting you on your laptop. Take all of them head on.