In the "Chimney Sweeper" (Innocence) where has the speaker has spent most of his life?

In this important poem by Blake the situation of the
chimney sweep is established in the first stanza where we are given vital information
about his upbringing and background:

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When my mother died I was very
young,

And my father sold me while yet my
tongue

Could scarcely cry "weep! weep! weep!
weep!"

So your chimneys I sweep, and in soot I
sleep.

So we can tell that
since his mother died when he was very young and his father then sold him into slavery,
his life has been one of constant drudgery and hard work. Note how "weep" is made to
rhyme with "sweep" and "sleep" in the last two lines, emphasising the pain and hardship
of his position. The internal rhyme in the last line also shows how endless his work is
by emphasising the relationship between his work and his "sleep" - he has no chance to
have a break and sleeps literally caked in soot because he is working all
day.

However, the rest of the poem goes on to try and state
that all those who face poverty and oppression will be compensated with endless joy in
heaven - a sentiment that the partner of this poem devastatingly
undercuts.