There are a number of different car insurance policies around. Picking the best policy for a young driver will depend on your specific circumstances. Broadly, there are three main types of cover for a young driver to consider.
Third-party. A third party policy will cover you for any damage you cause to other people and their property.
Third-party fire and theft. A third party fire and theft policy will cover the same as a third party policy, as well as include cover for the theft of your vehicle or damage by fire.
Comprehensive. A comprehensive policy will include all the cover of a third party fire and theft policy, as well as cover you for damage to yourself and your car. It is typically the most expensive type of policy (but not always, so it is worth comparing your options).