We absolutely recommend you start with your drone's instruction manual! There always some really useful information that you need to keep in mind in there. Make sure that you also check your local regulations, so that you keep safe and are flying legally. You may also need to register your drone, do a course, or even get a license to fly it, so please that the time to find out the rules in your country.
Try to find someone in your local area who can help our during your first flight, as it can be really nerve wracking! You can also watch the video below to learn how the controls work when you are up and flying.
Once your comfortable flying manually, you're ready to learn about automated mission planning.