Future,
Bad habits are something you have to figure out for yourself. No one can instill values within another. As an IC for example, I refuse to allow students to refer to me by my first name..I think it starts a bad habit they'll carry over into their job later on. Uniforms are a must as they instill a sense of pride and reflect the ability to follow simple rules.
Taking care in the little things will lead to positive habits throughout your career in other words. Education begins from the bottom up. Good Luck!
Other than the obvious standard of care, once you have earned your license, focus on being professional in every way from how you address your continued education to how you greet and treat every patient in your care.
PS: Don't forget to have a little fun while you're out there and keep a sense of humor about you. You will do well.