It's great you are trying to write and go for your dreams!
I write occationaly, when I have a good line pop in my head. I always write down things that I think would sound good in a book..lines, words that are cool or something.
I NEVER make an outline. I just go where ever my thoughts take me.. free writing. I don't think I'd ever publish anything, but who knows.
Also..you need to remember it's just a first draft! it doesn't HAVE to be perfect!
You have tons of other times to go through and rewrite something, take something out, or add something it.
If you are really stuck at some part, and you don't like how it's sounding, DO NOT scrap your entire work! Just keep on writing, and when you're done, and someone else reads it they can help you fix the parts you don't like, or maybe you'll think of something better by then.
I always have to remember that when I'm writing, otherwise, I'd never get anything done!
Also I find it easier to write about things I'm told to write about. I don't like having to come up with a whole plot, I just like filling in the details!
Best of luck!