Believe in yourself:
The most important thing is self confidence. Nothing can help you and give you the courage to face challenges if you lack self confidence. You must believe in yourself as this will help you in overpowering every fear. Make yourself realise that you are going to live your dream. Spare some time for yourself and focus on your strengths.
Learn from others:
Keep in mind that your seniors and other professionals are a solid source of inspiration. Watch them closely while they are working to learn how to control your emotions and negate yourself in front of the camera. You may talk to them and ask about their experiences. This exercise will definitely help you in overcoming any shyness that you might have in front of the camera.
Practice as much as you can:
You must make yourself comfortable and the best way to do this is to practice. You should rehearse repeatedly to get a grip. You can ask a friend or family member to make your video. This will really help you to develop some openness with the camera lens. Perform in front of a group of people as sometimes it is just the fear of facing a crowd that bewilders you in front of the camera.
Use your videos or photographs to evaluate yourself. Be honest and admit your shortcomings with an open heart. You may ask a friend or family member to give an unbiased opinion. You will feel a significant difference after a few sessions.
Work with a professional:
Try to work with a team of professionals as they always know how to handle such situations. Do not feel embarrassed in asking them for some help. Keep talking to the crew as this will not only divert your attention but it is a sort of a catharsis that will drain all the worries out of your mind.