1) Always remember your two golden rules: read a lot, and write a lot.
2) Writer’s block doesn’t exist. Don't use it as an excuse, instead, identify your real problem. Make sure your fed, watered, and rested. Give yourself permission to write crap. Read the story from the beginning. Clear your head, and find new ways to get inspired. Also, take a break to read a book. Then get back to writing.
3) Identify your reading pet peeves. The things that bother you should probably not show up in your work. This will also help you develop a more critical eye, and help you be a better self-editor.
4) Write. Every. Day.
5) Figure out your outline, if you need one. Ask yourself: How complicated is my story? Is this story subject to change? How long do I want to spend on this? A quick, simple story probably doesn't need too much outlining. A complicated story definitely does. The faster you want to finish your book, the more outlining you'll need. But if you'd like to settle down in your new world for a while, take your time, and let things be subject to change, light outlining is all you'll need.
6) Go read a book.
7) Write how you talk. Don’t try to imitate other authors. Readers are coming to you for something they haven’t heard yet. You have something no one else does: your own voice. Your own story. Don’t try to be anyone else.
8) And finally, don’t forget your two golden rules. Read a lot. Write a lot. These are your golden rules for a reason! Read, read, read, and write, write, write!