Can’t say I count either seeing as I haven’t published anything outside what I post on the web.
However, I have been given great advice from my professors who are all highly respected members of the literature scene in this country. I’ve also attended a writer’s workshop recently this past summer and all those who attended were pointed to many places that they could be published.
Anyways, one thing you oughta do when writing is that never turn on your inner editor until you finish your first draft. When you get down to write, let it all out, and minimize stops over minor details. When you’ve finished though, leave it as it is for a certain period of time then get back to it. That’s when you turn on the editor within you and begin correcting whatever errors you see (errors that may not have been there when you were lost in getting it out of your head). They called it “Writing in Heat, Editing in Cold”.
Another tip is that your story’s plot should have a point. Everything you put in it should have a reason that contributes to it. Otherwise, you’d risk cluttering it with wordy noise.
Don’t feel guilty about the number of times you have to draft. I’ve had a professor who says he had enough drafts to take up one volume.
A few more minor tips. Don’t put pre-existing song lyrics or letters into your short stories. In novels it may be tolerable but for anything else, it’s really quite a cheap trick nowadays.
And yes, motivation is often one big obstacle and even I still have trouble with it. The best way I’ve dealt with it so far is to sit down and actually look at my work for longer than ten minutes.
Finally, passion for the craft is crucial. Writing is still an art after all and one thing art excels at is expressing such passions. This isn’t something that you can just “do” as one would take up nursing, accounting, or engineering. You need to really love unleashing your imagination and putting it all in words. Better yet, you should have great love for imagination itself and what worlds it can make in your mind.
As far whether or not I’m Christian/Catholic in my works, meh I can’t say. I heard even Tolkien allegedly denied the theology behind his Trilogy. I’m not sure I’d like to come off as religious in my works either. Heck, the controversial Fr. Andrew Greeley does not sound like much of a priest if you’ve read any of his novels.
I’ve made religious characters, true but that’s only for the sake of contrasting them to the kind of characters I take after and sympathize. If I have one character who kneels quietly in pews and has a mind of sexual purity, you can bet I’ll have two or more who hang with delinquents and beat up bad guys in mind-blowing street fights.

I do however like to show there can be common ground between the two (e.g. Justice). And by contrasting them, I can point out the flaws in both sides.