Here’s Scott Raab on writing:
Anyone, especially in his or her twenties, saying ‘I have no time to write’ because of a job or anything else is full of crap. Writers write. If you can’t find time to write, don’t worry about becoming a writer. You’re not a writer. You’ll never be a writer. Find something else that lights you up.
Same with reading. Anybody who has no time to read isn’t a writer. All the work necessary to learn how to write boils down to reading and writing. This is not subtle or nuanced advice, obviously. I stress it here because of how often I talk to people who seem to think there’s a shortcut. I know no shortcuts. Luck counts, yes. Connections, too. But luck and connections won’t help if you’re not a good enough writer to take advantage of them.
The other factor is endurance. Endurance is a talent. Without endurance, I don’t think other talents mean much, not in a profession as uncertain as writing. Almost without exception, the chances to earn money and recognition come slow. If they do come quick, endurance is still required to build a career. The few writers I know who found relatively early success and kept it going weren’t just good writers; they worked even harder after making their bones.
Words to live by.