The power is within you
It’s easy to think you are what you are and that’s it. If you are happy with that, then there is no problem. We all should be happy with ourselves but that can’t be an excuse to not improve yourself both inside and out.
We all have the power to change, to learn a new skill, try a new hobby, present ourselves to others in a totally different way to what we have done before. Who cares if it initially comes off strange. The only one that will really notice is you and as long as it is in a positive direction then go for it.
I think we fear changing ourselves but I don’t even see it as changing. It’s more finding our true self and getting past our insecurities and self sabotaging behaviour.