I'm a big believer in the power of thinking your way to a good day and a good life. We can't control everything, but we can act in our lives rather than react as if we're victims or puppets or pawns. It's a little more work (lots easier to lie around complaining about how the world is against us, less risk there too), but worth it.
This applies double to our writing lives. Decide today that the world wants to and will hear your voice, somehow, somewhere, and get writing. Tell the stories you want to tell.
There's plenty of room and success for everyone. If you don't get in line for your share, you don't get a turn at the top.
Here's a quote to get you going:
"...what I focus on in life is what I get. And if I concentrate on how bad I am or how wrong I am or how inadequate I am, if I concentrate on what I can't do and how there's not enough time in which to do it, isn't that what I get every time? And when I think about how powerful I am, and when I think about what I have left to contribute, and when I think about the difference I can make on this planet, then that's what I get. You see, i recognize that it's not what happens to you; it's what you do about it."