Apprenticeship learning has been around forever. Rather than a single quest or purchase for a boost, make it series of tasks and then after weeks, even months worth of work, give bonus to relevant skill(s).
For cutting a hole in ice with quaff requires declining the option to drink from natural source (after the initial hole is cut), then asks to cut a hole in ice and then direction where to cut the hole. Using {Alt+fishing, then cut hole, one can skip the drinking prompt and the prompt to cut the ice, taking couple key presses off the sequence. And that task is also repeatable.
For thin ice, it's often less fatigue for the character to grab 3-5 slender trunks and throw them ahead to break the ice, pick up and repeat. But that's actually, more keypresses, fatigue for the player.