Please don't tell me

I wish people wouldn’t say
That I’ll be alright
Because each and everyday
I struggle to win my fight
The fight that others they call life
Every day, every night
It leaves me reaching for the knife
People don’t understand me
Yet they think they do
What would they think
If the truth they knew?
My smile is a lie
To cover what’s behind
Lying is so easy
The truth they’ve yet to find
Until they know the real me
They cannot say I’ll be alright
That I’ll survive another day
That I’ll soon stop reaching for my lifeline
My saviour, my knife
Cos I'm running out of steam
And I’m losing my fight
The fight that others know as life