Trust here isn't a setting you flip on. The system has to prove itself, measurably, before it does more on its own — and you can read its record any time. You always hold final approval.
Every recommendation the system makes is logged and then checked against what actually happened — what was recommended, what you decided, how it turned out, and whether reality moved the way the recommendation pointed. Wins and misses are recorded the same way. A record that only kept the wins would be worthless.
A step is earned only when the track record in that area holds up — roughly three in four recommendations moving things the way they pointed, sustained over time — and then only when you confirm the step. It never advances on its own, and a reversal drops it back.