Many students have a job to help pay for their studies. Perhaps you are one of these. Remember, however, that work and studies are difficult to reconcile!
Different countries have different eating habits. How many meals are eaten in France and at what time? Where and how can you purchase food?
In France, the social security system is among the word's best. You will be almost totally reimbursed and, in most cases, you won't have to pay upfront for your healthcare.
In order to drive a car, you must have a driving licence. Be careful to respect the French highway code, which may be different from the one in your country !