*_Some of the world’s greatest feats were accomplished by people not smart enough to know they were impossible._*
— _Doug Larson_
You can do plenty, and yet you are not superhuman. So be realistic about what you can and cannot do because it is by recognizing your limitations that you begin to transcend them. It is by admitting your weaknesses that you find ways to overcome them.
Being fully aware of your strengths is just as important. It enables you to engage those strengths, to build on them and add to them.
To know your strengths and weaknesses, you need to encounter challenges that tests you and shines a bright light on your advantages to show you exactly where you can use improvement.
The more you challenge yourself, the more you know yourself. And that is an extremely valuable thing to know.