Don't quit your day job.
Don't be disappointed by rejection, because it will happen.
Prepare for a long journey to publication.
Expect hurdles along the way.
Good advice, except that if you focus on all the warnings you're going to lose part of the fun of the process.
I remember going to my second Mt. Hermon Writer's Conference in 1995. I'd submitted a novel I'd JUST started working on and I had a big worry. What IF more than one publisher wanted it? How would I choose!! Oh my!
I laugh now because I was such a newbie. I had nothing publishable to offer, and I didn't realize that...but writing to me was fun. In the last 17 years I still have the same joy. Yes, writing is work but everyday I want to pinch myself. I really get to write books for people from around the world to read??? How cool is that!
Don't be disappointed by rejection, because it will happen. Yes, rejection will happen but don't feel you have to shrug it off right away. Give yourself time to pout. Rejection hurts because writing matters.
Expect hurdles along the way. There are always bumps in the road. Problems we don't expect. Family situations that keep us away from the computer. Health problems that throw us for a loop. But on every journey there are unexpected surprises. Along the way to having your novel published you'll meet amazing people. You'll discover things about yourself you never knew. You'll grow closer to God as you lean on Him. The hurdles will come, but so will the triumphs and joys. Look forward to these, too.