Sick of some of

I'm really sick of some 
of this. It goes by parts, 
and never sums to all 
or most or even much. 
But those hard parts 
can grow to crush 
when I can't clamber 
up atop. That's when 
I let myself drop through 
to seek and prey upon 
the roots, and find what's 
well to know. Some truth