The problem with being up beat and positive so many negative people try to make you a target so they feel better about themselves. You can't have an off day because they assume something is wrong.
Some days its better to be alone and compose your thoughts. Easier to be alone but do like when people aren't being consumed by their frustration and acting weird over a problem they have no way or control over.
It's easy to be yourself when you don't have others assuming, making you out to be someone you're not.