You only get one shot

this is the start of Eminem's, "Lose Yourself"
this says whats its all about really..(maybe not the broken home stuff..)

Look, if you had one shot, or one opportunity
To seize everything you ever wanted-One moment
Would you capture it or just let it slip?

His palms are sweaty, knees weak, arms are heavy
There's vomit on his sweater already, mom's spaghetti
He's nervous, but on the surface he looks calm and ready
To drop bombs, but he keeps on forgettin
What he wrote down, the whole crowd goes so loud
He opens his mouth, but the words won't come out
He's choking, how everybody's joking now
The clock's run out, time's up over, bloah!
Snap back to reality, Oh there goes gravity
Oh, there goes Rabbit, he choked
He's so mad, but he won't give up that
Easy, no
He won't have it , he knows his whole back's to these ropes
It don't matter, he's dope
He knows that, but he's broke
He's so stagnant that he knows
When he goes back to his mobile home, that's when it's
Back to the lab again yo
This this whole rhapsody
He better go capture this moment and hope it don't pass him

[Hook:]
You better lose yourself in the music, the moment
You own it, you better never let it go
You only get one shot, do not miss your chance to blow
This opportunity comes once in a lifetime yo

One shot, one shot, one shot ....