The required documents may vary depending on the policies of the insurance company to which you are applying. Generally, you should bring information related to your vehicle, and you should be able to provide basic information about yourself (proof your identity, residency, etc.).
Yes there are limitations. If you are under 18, you are not allowed to use electronic devices (e.g. cellphones or iPads). Additionally, you are not allowed to drive between midnight and 4 AM, and you are not allowed to have more than one passenger, who is under 18, in the car with you during the first year after receiving your Driver's License.
After you have passed your VA Driving Exam, you will pay (or confirm payment) of your license fee, which is $4 per year. If you are 19 or older, you will receive your license in the mail. For new drivers under the age of 19, you will receive your license at a licensing ceremony. Information about your licensing ceremony and its date will be sent by mail to your home.