Original Story

I don't feel ready to start my own real, original story. I have a few idea's, but I don't want to blend in with the masses. That is, I guess, an irrational fear. All stories fall into a category, and within each category there are a mass of things to choose from. How could anything I pick to write be different? How could any idea of mine not reflect something similar to another story?
Regardless, I'm rather bad with grammar, and I'm still a bit shaky when it comes to the internal musings of my characters. The motivations behind them, and what to wait to tell my readers... and what to inform them of in advance trips me up every once in awhile.
I'm going to focus on getting through school, and just writing these fanfictions before actually starting anything, but all my idea's will not stop circling my head unless I get them down somehow. Some good idea's may be wasted on Fanfictions. Not, I guess totally wasted...
Grar.
I'll get back to writing Vindicated's next chapter. Thanks for reading.
-Jack