wrong.
noun: reality

1.
the world or the state of things as they actually exist, as opposed to an idealistic or notional idea of them.

If someone believes the world is flat, that doesn't make it reality. Reality is external to humans, and therefore not inherently subject to our imaginations. We're bound together by one reality, and live separately under the influence of fictions and perspectives.

Life is about being yourself and doing what only you can do. "Fitting in" is what people with low self esteem try to do (and fail).