I'm new and helpless

I joined less than 24 hours ago and have been reading a lot about Steemit and posting. I think I'm more or less beginning to understand how this all works. However, I can still use some guidance. Steemit seems like such an active and helpful community so I turn to you!

What do you wish you knew that you know now?

What advice could you pass on to me that you wish you knew when you first joined? I've read the FAQ but I would love to hear from real users' experiences.

Thank you!

P.S. Can you tell I learned how to format with headers? ;)