This is quite a difficult question to answer and I know what it is like :3
You began this game as a fan-game because Zelda is a known and successful franchise, no doubt about that.
However, once things get into more "professional" hands like being paid to make a game or make money off an original creation, THAT is awesome... however the problem is not many go that far.
But to be honest with you, go back with your fan-game, creating your own stuff may put you off temporarily and go with your original plans.
If your original plans DO fail as a fan-game, you know that it wasn't meant to be and you can simply turn it into your own title and have the game finished with some graphical changes
Since you do not know where to turn, keep turning in your original direction, yes a professional career is awesome and rewarding but sometimes you need to keep your original pace to keep your ideas intact.
Hell, sometimes when I am drawing or thinking of what to do next, I try the unthinkable and silliest ways to do it, but in the end I have a lot to show for it and I have more roads and possibilities to explore, just let your mind do the wandering, not others :3
I am the founder and creator of Unicorns Lair on this fan-game site and I just wanted to tell you, go in the direction you are comfortable with most because in the end, whether original or fan-based, you will have game development experience regardless, that and its a comfort zone you can tackle later too.
I wish you luck and hope things get better for you :3
~Janet Merai