I think the focus minigame needs a little more explanation, it took me a couple tries to realize you need to rapidly click for it. As well, the difficulty ramps up rather fast on it, to the point that it felt necessary to use an auto-clicker to even come close to completing the minigame after only a couple completions
If you have trouble getting high values on minigames, that means the mood and/or energy are too low and she needs to rest or fuck, they influence some minigame timings.
Anyway, the minigames and stats don't really matter in the overall progression. While I initially thought they would, having a "game over" because you didn't raise a stat would feel frustrating.