The cost of checking
Sort every task by how expensive it is to verify the answer.
Every tool you used before was either right or visibly broken. This one is fluent whether it is right or not, so the useful question is never "is it reliable?". It is: for this task, what is my check, and what does it cost?
Cheap to check: code that runs or does not, a summary of a document in front of you, arithmetic you can redo. Costly to check: statistics, citations, legal or medical specifics, anything about a live market. Impossible to check: intent, private facts, the future.
The useful move is to reshape a task from costly to cheap. "What is the CAC benchmark for B2B software?" is costly. "Here is our data; work out CAC and show the arithmetic" is cheap.
Find your way around
Learn it in the course, copy it from a playbook, see it work in a case study.