How long is your story? How long should it be? Is a novella better than a novel for a first time writer? Should you write something as epic as War and Peace or keep it under 100k words? Such weighty problems that some new writers obsess over are really simple to figure out once you realize what the real questions are.
First a brief discussion of the different story lengths. These are rough estimates and can be flexible depending on the market you are submitting to.