It definitely can take a lot of work to get a good post out, especially if you're adding media like video to the post. Coming up with the ideas is hard enough. That's one of the reasons I like to get various coin designs, because then I have immediate ideas for posts. However, those normally cost a little more money. So yes, I normally pay around $17 just for each post idea! Ha ha.
Keep at it. Sometimes you get the writer's block, but other times the ideas just flow. We're rooting for you!
Not just writters block, but feeling like I can't write a complete piece in the time I have, or take the photos and research the coins enough to think it has enough value.
I'm sorry. That happens. Just do what you can with the time you have and don't worry about the rest. If you post, you post. If you don't, well you can still have fun commenting and browsing the shiny that gets posted. It's still nice to have you around.