For me, it's 8 years, over 300 rejection letters, 2 contracts with failed publishers, one contract turned down, and I am still writing. I love it. I am miserable when I don't do it, although my husband would much rather I be miserable than embarrassing the hell out of him by writing anything. I am not to discuss my books with anyone that he associates or works with. That said, I am working on book 17, and oddly enough, after finally agreeing that I would send out submissions on three more m/s I would stop and just accept that I like to write and give the stuff to people to read just for the hell of it, I received a response asking for the complete m/s (this after they asked for the first 3 chapters and exclusivity based on my query letter, and then not getting back to me within the specified time limit -- they still want it.) The strange thing now is that if they decide to offer me a contract, I will be thrilled, and if they don't, I will still get out of bed the next day, wait for hubby to leave for work and then sneak off to my laptop again. If I could just write and say to hell with all the rest, I would be the happiest person on the world. So, my advice -- write because you love the journey and the challenge and the satisfaction.