Here are a few corrections to your otherwise good English translation:

I lost you. You and me grew up together...
should be:
I lost you. You and I grew up together…

Why had you gone before me much earlier?
should be:
Why did you go so much earlier than I?

you flies hardly
should be:
you hardly fly

but you just cannot to land
should be:
but you just cannot land

Beyound the river Irtish there is a deep ravine.
should be:
Beyond the Irtysh River there is a deep ravine.

The golden eagle sings before he's gone
should be:
The golden eagle sings before departing

you flies hardly
should be:
you hardly fly

but you just cannot to land
should be:
but you just cannot land