Some things are out of your control while you are driving. You do not decide what happens outside of your car, and many situations can make driving difficult, such as bad weather.
Perhaps you are driving extremely carefully, but you can hardly see through a snowstorm. Maybe it is raining so heavily that your car hydroplanes on water on the road. Or a large animal could dart in front of your car, not giving you enough time to stop.
Any of these environmental conditions could lead to a car accident. You may be seriously injured during such an accident, especially if you are not expecting the impact.
If you suffer damages during a car crash and you believe that it was not your fault, you may be eligible to file a personal injury claim to receive compensation. You should speak with a personal injury lawyer before filing a claim, as having an experienced attorney will likely increase your chances of success.