If

[Little Rik]

That's a reasonable approach, I guess. But it would be useless if I didn't remember my previous life. I'd just be another exploited laborer, wondering why life sucks.

Suppose that YOUR full picture is missing something.
Suppose that your consciousness is always tune in with the cosmic consciousness but your mind is not.
So your consciousness knows about your previous life but as far as you haven't created a parallelism between your consciousness and your mind is not possible for your mind to see the full picture.
The work to be done would be to reflect your consciousness into your mind so you could see the reality and understand how everything works but this hypothetically is also the divine game.
Where would be the fun for the supreme controller if everything is easy?

In the real world, however, we can only learn from what happens in this life. We certainly don't have any reliable textbooks or homework assignments - on the contrary, we have a shit-ton of books that all claim the be "the one true textbook," and none of them are confirmed in any rational way by observable reality.
As for "homework," we have our intelligence, our curiosity, our tools, and the "homework" of all those who have gone before. We're trying to figure out the how and why of the Universe, and so far all the answers to things like "what is lightning?" and "why do people look different in different parts of the world?" and "where did all the different animals come from" are noticeably lacking anything like "goddidit." Every time we find a new answer; another piece of the puzzle, it turns out to be "this is how nature works."
So if - against all the evidence we have so far discovered - there actually is an afterlife and a god, that god's first responsibility upon my meeting her would be to explain why everything appears to be the result of natural causes rather than divine creation.
Unless god is the capricious, irrational shit described in the Bible. In that case, I'm gonna run like hell and hope he gets distracted by the prospect of another Holocaust, or another billion babies to torture with horrific diseases. BibleGod does seem to be a pretty clueless fuck, for all his bragging about omniscience.

If i would be God i would say to you...........WHAT'S THE MATTER WITH YOU!
HOW CAN YOU BE SO DUMB! CAN'T YOU SEE THAT IN THE CREATED UNIVERSE THERE CAN NOT BE ANY REAL PROGRESS..........CAN'T YOU REALIZE THAT REAL PROGRESS CAN ONLY BE ACHIEVED OUTSIDE AND INTO THE SPIRITUAL SIDE?
So no.
According to me God is not responsible for anyone dumbness.