Are you shooting this yourself? If so, the advice I can give is really more focused on the shooting script aspects. However, there are general issues which also apply to spec scripts. As IndiePaul pointed out, the major issue is that you do too much telling in the script. You tell the reader but in reality none of that information is visual. A quick example:
Code:
INT. MICHAEL'S HOUSE - EVENING/NIGHT
Michael is greeted by his[COLOR="Red"] FRUSTRATED[/COLOR] dad in the living room.
Michael notices that his Dad is holding an alcohol bottle,
[COLOR="Red"]but doesn't say anything.[/COLOR]
MICHAEL'S DAD
Where the hell have you been?
MICHAEL
Does it even matter?
Michael, [COLOR="Red"]not wanting to talk[/COLOR], starts walking into the
kitchen but his Dad, with his one hand open, grabs his wrist
with the watch and looks at it. Michael stops. His wrist
alarm goes off[COLOR="Red"] as he had set the alarm late[/COLOR].
MICHAEL'S DAD
Well I'm glad to know it works.
[COLOR="Red"]Michael, knowing where it's headed.[/COLOR]
The items in red are not knowable to the viewer. By describing reactions, the actor and director will decide how to interpret the exchange. Since this is a shooting script, you want to be breaking this up into shot sequences, not dense paragraphs.
Code:
3. INT. MICHAEL'S HOUSE - EVENING/NIGHT
3A. DOLLY OUT: Michael enters door of his house.
3B. WIDE SHOT: MICHAEL'S DAD (60s) paces in the living room, looks
up at the clock then towards the entryway as Michael enters and pauses.
3C. MEDIUM SHOT: His Dad grasps an alcohol bottle.
3D. TWO SHOT: Dad staggers towards Michael and stands
close, leaning in.
MICHAEL'S DAD
Where the hell have you been?
MICHAEL
Does it even matter?
3E. TWO SHOT: Michael turns towards the kitchen. His dad
with his open hand grabs his wrist
3F. OVERSHOULDER: on watch. His wrist alarm goes off.
MICHAEL'S DAD
Well I'm glad to know it works.
3G. TWO SHOT: Michael glares at his father, who releases
his wrist.
...
Some production companies detail the shots in the shooting script. In others, they can look like spec scripts with occasional shot details written in.
Code:
3. INT. MICHAEL'S HOUSE - EVENING/NIGHT
DOLLY OUT: Michael enters door of his house.
MICHAEL'S DAD (60s) paces in the living room, looks at the clock
then towards the entryway as Michael enters and pauses.
His dad grasps an alcohol bottle.
Dad staggers towards Michael and stands close, leaning in.
MICHAEL'S DAD
Where the hell have you been?
MICHAEL
Does it even matter?
Michael turns towards the kitchen. His dad with his open
hand grabs his wrist
CU: on watch. His wrist alarm goes off.
MICHAEL'S DAD
Well I'm glad to know it works.
Michael glares at his father, who releases his wrist.
...
In the examples above, I also eliminated the non-visual components or elaborated them. What does 'frustrated dad' look like? Is he fat? imposing? in pajamas? dirty work clothes? That information would be useful in a spec script to help the casting director and wardrobe person.
In the script you use 'we see, we know, ...' NO WE DON'T. Unless you describe it visually, it can't be known. Also 'starts/begins' are usually superfluous. A person 'talks', they don't 'start to talk'.
A major issue is the final voiceover. DON'T READ THE LETTER!!!! This would be DEADLY on screen. It's soporific drivel as it is. I'm sorry.
The script was rather boring, drags because very little action happens and is generally uninspired. I force myself to page five and you announce the "ROLL OPENING CREDITS". You lost my attention way before that unfortunately. I'm sorry but it seems every new young adult screenwriter writes the same storyline--boy/girl with problems with mom/dad/caretaker, runs away, makes friend, ends up in trouble, commits suicide, the end. It doesn't get any better the hundredth time I read it.
I won't dissuade you from shooting it, but I would strongly encourage you to seriously put it aside and revisit it after you have written a couple other short pieces first. You might try writing a couple spec scripts first before tackling a shooting script. Good luck with your writing endeavors.