"Be Yourself" and you will be able to express who you really are because if you are just yourself everything will come together and it will all work out. Just be yourself!
What you have to know is that who you are is always changing who you are will always continue to change and it will never stay the same because everything in life is in motion, everything is moving. Everything is energy, and vibration frequency and what you have to know is that you are going to change, you are going to change from the beginning of your life to the end of your life you are never the same person, not even for a second you are always changing your cells, they are renewing your heart is beating.
Everything is going on in here and you are never ever completely still, with no activity, no noise and no change, there is always change. There is always flow, there is always something going on.
If you want to be yourself you have to recognize that in order to be yourself you have to keep looking at what is going on within. What message am I getting from within that wants to come out and flow out to the world. So the real key to being yourself really is expressiveness.
If you truly express what is within you in this current time, who you are right now if you let that come out and surface fully and let that take over, and really enjoy that to it's fullest whatever stage that you are currently at in your life right now. If you decide to express that 100% what you will experience is that you become happy because you will become fulfilled because you are communicating your deepest truths, your deepest core of who you are right now.
But remember you are always changing so if you want to continue to be yourself you have to be ok with doing some letting go of, you have to be ok with some sacrificing, you have to be willing to give up some of the things that maybe you used to love and really care about and deeply appreciate and maybe even be obsessed about, those things just don't matter anymore.
You are always changing, in this moment you are changing. Yesterday you where a different person, today you are a new person. You are renewing, you are re-inventing yourself. So what you might aswell do is start to express that fully.