reading all that is shared here makes me realize how little I know so I feel I have not much to give
I think we can surprise ourselves. All the knowledge we have isn’t at the forefront of our minds all the time. It’s stored away somewhere, just waiting for us to access it.
We don’t know how much we know until we start writing it out. Your idea that you don’t have much to give is probably just an assumption. I’m sure you can prove yourself wrong!