No authors write well without knowing their audience; no salespeople sell well without knowing their customers; no companies pitch well without knowing their potential funders. You can only know your funders by doing your homework.
What kind of return are they seeking, and when, and who am I competing against for their attention? How can I differentiate myself from the other companies raising money?
What kind of deal should I offer? How do I prove my traction effectively? How painful is this process going to be? What can go wrong?
You need to have good answers to these questions before you even approach a funding source. Connecting then learning is not the way to go. “Hi, I’m not sure if I’m a good fit but I was wondering if you would fund my company” is a certain way to get to "you're not a good fit."
But that’s why you’re reading these posts, right? And why you’ve already read this page.