Start writing, start painting, make that call, hit send, publish.
At some point you're going to have to just start somewhere.
It doesn't have to be easy. It doesn't have to be good.
But you will have to start to know for sure.
PS: If you like reading the blog or find the information insightful, share it with someone. Quote, screenshot, whatever you like. A like button would probably be easier but I'd rather you share the ideas with someone. Don't be selfish! :)