Hi, Ben
If you're writing as the intended director then what you're doing is fine.
It's only if you're writing to sell a screenplay as a spec script or work with well experienced industry cast & crew on your own production that formatting matters much.
Now, if you want to practice spec screenplay format just for the halibut as you write for yourself then... the benefits can just be incorporated into your general skill set as almost a freebie.
http://www.scribd.com/doc/12721428/Professional-Screenplay-Formatting-Guide
MadHatter's right on top of it. Two thumbs up!
Headers (AKA slug lines) just need three elements: INT/EXT space LOCATION space DAY/NIGHT.
Rarely do they need "MORNING" or "NOON" or "EVENING"
Sometimes the location description needs a modifier to it, technically making it a four part slug line.
Ex.: INT. BEACH HOUSE - DINING ROOM - NIGHT
A note about spell check:
Code:
Small open beach, considerably[COLOR="Red"] quite[/COLOR] with few people around,
with large cliff either side. Concrete platform with some
food stores located and the back of the beach.
Weenie stuff like that. No big whup.
Always a good reason to show this:
https://www.youtube.com/watch?v=p_rwB5_3PQc
Also, you don't have to include the apostrophes at the beginning and end of dialog lines.
Code:
ANNIE
[COLOR="Red"]’[/COLOR]Do you want to go grab some
dinner? I’m starting to get
hungry.[COLOR="red"]’[/COLOR]
She looks at [COLOR="Purple"][his or her?][/COLOR] stomach and then leans back.
BRIAN
[COLOR="red"]’[/COLOR]I was about to ask you the same
question. Where do you want to go
to eat?[COLOR="red"]’[/COLOR]
ANNIE
[COLOR="red"]’[/COLOR]We could go and get some fish and
chips.[COLOR="red"]’[/COLOR]
BRIAN
[COLOR="red"]’[/COLOR]I thought it was closed today.[COLOR="red"]’[/COLOR]
Just read the first page or two of some produced scripts (rarely by nube spec screenwriters, frequently by experienced spec screenwriters) to get a more detailed understanding of what "industry standard formatting" can include.
http://www.imsdb.com/latest/
It's subjectively liberal within some confines.
And it's somewhat like driving: there are some rules for everyone, but there's also a fair bit of leeway, as well.