To practice - write each and every day if possible - then try to attend professional writer's conferences where you can learn your craft, get to know fellow writers, and meet editors and agents.
James DashnerI don't give a crap if you're a Tangent or a really smart llama. You're my friend and that's all that matters
James DashnerIn my early writing, all of my characters were exactly the same person. They all spoke the same, made the same types of jokes, reacted the same, etc. I think they were all just me in disguise.
James Dashner