Is the land of forgetfulness, not where people forget, but where perhaps the LORD forgets them?

Psalm 88:12 Shall thy wonders be known in the dark? and thy righteousness in the land of forgetfulness?

How about in the lake of fire, will the LORD forget those that end up there?

If we get saved, our sins and iniquities he will remember no more.

But if we die in our sins, will he forget us, as we end up in the lake of fire?