Have you ever wanted to be different than you are? For me it happens. Mostly when I’m disappointed with what I have / haven’t done.
In fact, I think when we wish for being different, what we really mean is that we would want to have acted differently. When we wish to be more „outgoing“, what we mean is „I wish I would have gone out and spoke to those people.“
We are the sum of our habits. And habits are formed by actions.
So if you want to BE different, just ACT differently.