An authentic person is happier, and has more energy to go through life. You feel more relaxed and at home within yourself when you are truly authentic.
To start being authentic ask yourself the following:
1) Who am I?
2) What matters most to me?
3) When am I not myself?
4) What makes me happy?
5) What do I really think?
6) How can I be more of me?
These answers will take time and it takes courage, determination and perseverance to find the answers but you have the power to choose to find them.