Knowledge and Wisdom come from experience, you can’t learn it or read it from a book, at least not all of the time.
Wisdom is gained by making mistakes, sometimes over and over again, and learning from those mistakes. You can be smart and have little wisdom. If you memorize everything, that could suggest that you’re smart, but wisdom comes from taking chances in your life. If you don’t take the leap of faith and miss those opportunities, then you will not learn from the mistakes you might make.
I’ve never been afraid of making mistakes, perhaps I’ve made too many, but it has made me a better person and much more knowledgeable. That doesn’t mean you throw all your eggs in one basket and “hope” that it pans out for you, take baby steps and work on what you want to accomplish…build on it…then work on it again. The wisdom and confidence you gain will take you to levels you never thought you could reach. You don’t have to be “smart” to harbor wisdom, keep progressing forward and set your sights on what you want to accomplish, and you will accomplish it. Maybe now, maybe not now, but eventually.