Keep writing and keep reading. Stop judging yourself or your work, remember that you are just starting. No one is born complete, refined, and perfect. We are all working towards being better. The biggest obstacle you have is realizing that you have to put in the time to become what you want to be. There are no shortcuts. There are no coronations. If you find yourself asking "is it worth it?" then you are questioning your resolve. Think long and hard on that, for if it's anything except "it doesn't matter if it's worth it" you may have different priorities.