Quick tips for filming yourself
Film in landscape.
If you're using your phone, use the camera on the back and turn it sideways. If you're using a webcam, it should record in landscape by default.
Use plenty of light.
Try finding the brightest room in your home or office. Natural light is ideal, but any light coming from behind the camera will work.
Find a quiet spot.
You will want your message to be heard! Limit any background noise to ensure your microphone can clearly record your voice.