About the licenses:
In order to fly your drone under the FAA's Small UAS Rule (Part 107), you must obtain a Remote Pilot Certificate from the FAA. This certificate demonstrates that you understand the regulations, operating requirements, and procedures for safely flying drones.
To become a pilot, you must:
Be at least 16 years old
Be able to read, speak, write, and understand English
Be in a physical and mental condition to safely fly a drone
Pass the initial aeronautical knowledge exam: "Unmanned Aircraft General – Small (UAG)"