What Waldronate said, pretty much. My own Orion Spur map took literally years to get done. I posted a "look back" at my early WIPs on my blog: Star Map – Final Version – And a Look Back | Enderra

I think you'll agree that the initial versions were absolutely crappy, but I stuck with it, tried new things, and eventually ended up with something I kinda sorta liked.

It's easy to see some of the awesome maps here (I don't even mean my own, there are many people here who are TONS better than I) and get discouraged because you don't see the tries and errors that went into making them. Don't get discouraged, is my point.