Your user does not share your skin color, your income level, your gender identity, your religious beliefs, your dreams, your eyesight, your hearing, your physical abilities. Never, ever forget this. And if you start forgetting, then your empathy is slipping, and you’re doing shoddy work.
As a designer, your first priority is to understand the problem given to you as fully as you possibly can. Don’t ever think your job is just to provide solutions. The janitor can come up with a solution given a pen and a whiteboard. You’ll be hired because you have the skills to best comprehend and communicate the situation.