The first idea is one I've suggested in the past which is to essentially merge credo quests with the numen system. Rather than being assigned a random list of tasks as you are now, you would be assigned 3 groups of tasks. The first 2 options could be completed to progress further in the credo. The 3rd option if completed would work as a reset/skip for your current credo task. Completing the 3rd task would reroll your 3 quest options without progressing or moving backwards in your credo progress.
The second idea is a little more detailed, but I think that it would make for a better system overall. I propose that the current quest levels/quests-per-level system be removed in favour of a new, point system. Say you need to reach 100 points to complete your first credo, 110 for your second, and so on.
Every credo would provide the player with a long list of potential tasks, each with their own weight in points.
Example for the hunter credo:
-Kill a boar x10 (2 points each)
-Flay a large animal x20 (1 point each)
-Catch a mallard duck x5 (1 point each)
-Etc.
Ideally, there would be more tasks and points than are required to complete the credo so that you can pick and choose the route that you would like to take while doing tasks that would ideally be building onto the main idea of whatever credo you're working on. So, actually hunting for the hunter credo. Getting points for catching "big catches" for the fisher credo rather than skipping fishing quests entirely. etc.
I think that this second system would be more enjoyable overall because it gives the player more freedom to progress how they please while doing tasks that may actually help them or contribute to something that they're already doing (like hunting large animals, or collecting certain curios). It would remove rng and tactical dice-roll abandons for easier quests.