Double-edged sword

I don't think i will ever say it
But I have to apologize
I've bought the sun
and didn't check the price

It was not on purpose
It is not a payback
All the stars were fading
life was turning black

That light was vital
To keep me walking sane
Now I feel the weight
even though in vain

I know it is my fault
I should have walked away
But i was sunk in darkness
Until that shinny day

It's a double-edged sword
Don't make it easy for me
I don't want to cause you damaged
It's the happiest way to be

Yazalde