Kind of proving my point, you spread yourself too much : 30 is the bare minimum for an option to be potentially successful and you would need to know the Trial well. (Though some of the options are obvious)
The Trials are meant to be an optional challenge, they are not meant to be easy.
The game even outright tell you to be careful the first time you are losing points in a stat if it's neglected too long, but some players still raise every stats at the same time in attempt to see everything in a single playthrough, and that's impossible.