Разобрал ты правильно, насчёт грамматики беспокоиться не стоит сильнее самого Брауни.

Остальное вот, со слуха опять же:

From my childhood - t'were I am now

I ain't no worry, I'll get by somehow

My mama told me, papa told me too -

I was born with the blues

I tell you something, there ain't no joke

I used my <нрзб> my way from home

Mama told me, papa told me too -

I was born with the blues

I used my guitar for my pillow

Hollow log had even been my bed

Blues my only companion

Had the same blues for my meat and bread

I want you to know! Since I began to roam

Pure ole me, I came from a broken home

My mama told me, daddy told me too - I was born…

Don't believe I'm sinking - look what a hole I'm in

Don't believe I love you - look what a fool I've been

But I'm not ashamed 'bout the bad news - I've been living…

Rocks were my mother's father's pillow

Cold groud had even been their bed

Blue skies were their blanckets

And the moonlight was their spread

You think I'm happy, you shure don't know my mind

Smile on my face, heart's bleeding all the time

But I'm not ashamed 'bout the bad news

I was born with the blues