once upon a time.

I've tried my hand a writing a few stories, but end up giving up because I just don't feel they are any good.
A few years back, after several unsuccessful writing attempts, I read a book entitled "Crafty Screenwriting" that really rocked my world in exactly HOW you go about writing a story.
Right off the bat the book says, "Don't start by writing a story." I was puzzled, so I continued on.
It asks the question of what the point of writing is if you don't even know if you have a good story. What the book says to do is to instead just start talking to people about your story, any that will listen. The more you tell it, the more details you begin to add to it.
You know you've got something when people start asking questions about plot/characters/setting. THEN you know you've got a story. Once people seem to be invested in this fantasy you're laying on them.
So, I thought I'd give it a shot. Why not? Below are the three main stories I've tried to write or have thought about writing. I actually am a little nervous because I've always been super protective of this stuff, not wanting people to think I'm a weirdo for coming up with these. It really is just a few stories that I thought might be intriguing or that I would be interested in reading if someone explained the idea to me. Anyway, here they are!!!

1) Waiting on an Angel - A drama about finding that "special someone." Seriously. No, I'm serious. Why are you laughing? This was script I started working on when I was going through an extremely difficult time in my life after breaking up with my girlfriend of nearly two years. Writing this really helped me look for the positive in every relationship and no matter how good or how bad, you can learn from it.
Before I started writing, I actually prepared a 32 song soundtrack, organizing the songs in a way that they told the story chronologically.
The story begins with a couple breaking up in the winter months. In the spring, he begins another relationship, then summer another, fall another, and then the film concludes the following winter. The story is to show the man's growth relationally as each season comes and goes. It seems very subtle as the story is progressing, but as we see him at the end in the winter, putting him in the same environment as which we first saw him, we can obviously identify how much he has changed.
What girl does he end up with? Does he end up with anyone??? DRAAA-MAAAAA!!!

2) Good Faith Manor - A classic horror setting with mind-blowing twist! Five friends take a trip into an abandon mansion that used to be an insane asylum. They are scoping out the place before things start to....come on, you know the story.
The asylum was burned down many years ago and was rebuilt on the same foundation and converted into a retirement home, which was later abandon.
This is actually based on a true story of an old retirement home just north of Boone. Went in it once several years ago (before it was torn down) and that sucker was flat out creepy.
This story unfortunately sounds really cliche, but I really can't give away the twist because it kind of defeats the purpose of even writing the thing. I have told a couple people about it and they all had extremely positive responses to the twist (one friend told me he got chills when I revealed it to him. WHAAAAAAT?).
The ending is what makes this different from your classic ghost story. I feel the ending is actually very powerful as it deals strongly with matters of faith, forgiveness and following Christ.

3) The Reigning Down - Here is your epic thriller. Think DaVinci Code but not ridiculous. It deals with a young historian that stumbles across something very puzzling in his research. There is a period of 700 years that are completely unaccounted for. He can't find any information of any people or any events that took place during this time. The last bit of information he uncovers is an unnatural solar eclipse followed the same day by a harvest moon and then.....nothing, for 700 years.
As he begins to dig deeper, he realizes there are those out there trying to protect a secret!
And a MASSIVE twist at the end, which, of course, I can't say a thing about.

So, based on these synopsis...es..is, which of these stories sound worthy of being written? Which one do you have the most questions about? Which are terrible? Awful altogether and back to the drawing board?
I would love to hear any and all feedback because I really would like to write a story someday. Not necessarily any of these, but I feel like "writing a book/screenplay" is definetely on my bucket list.