" If you want to be a writer, it's going to hurt - not once, but often, and a lot. Don't do it unless you're absolutely driven. If you can take it or leave it, you'll end up leaving it.
Keep writing. Accept rejection, learn to welcome criticism - then learn which criticism is valid and which isn't. Don't try to write to a market, it never works. And learn discipline. Much more than inspiration, discipline is your friend. Sit down at the same time every day to write a set number of words: it doesn't matter how many words, or how few. Stephen King writes 2,000 words a day. Graham Greene wrote 500, and stopped mid-sentence if he felt like it. A little every day adds up more quickly than you might realise, and it keeps the book "alive" more effectively than writing in occasional splurges. "