Help for countering “I am not smart enough” etc

Hi Brooke
Your podcasts and webinars are amazing and you are an excellent teacher- thank you
I am looking for ways to help myself with objections such as “I am not smart enough” “there are so many people smarter than me” “if others better than me can do it, why should I try”. I am smart enough but it is also true that lots of people in my field have a lot more knowledge than I do. I suppose that is the norm for many of us