For limitations, more or less. But it's also a question of what kind of character you want this to be like personality type, physical appearance, or certain features like weapons, armor, or some very defining thing about them.
As in interest, like where would this character be from? Sci-fi? School life? Fantasy? You know that kind of stuff.
When in doubt, just take the next small step.
With that next step take a deep breath. It calms the mind.
When the mind is calm you realize the best is still yet to come.