@Aceeee82 It's triggered by reading a skill book/practicing a skill or using a Research Archive Machine the night before and keeping that routine going. As soon as my Sim had an evening where she didn't practice any skills she lost the boost.
I found this explanation:
"If they can keep practicing, which is really very easy since you can just read four skill books for 5 minutes each day… They can keep their 180% skill boost. Permanent Double Boost Week!" But it's not just the skill boost, they get this massive boost to focus too.
I'm going to keep working with it today. It's definitely boosting her promotions at work in the legal career she's crushing it. Have to admit I was really unsure about this trait and didn't think I'd use it from early descriptions of it. Sims Community Guide also says:
"How this ‘practice makes perfect’ works: By default your Sims learn all skills at 50% speed. But by practicing a single category (Creative, Social, Physical and Mental) continuously, they can up the speed to 90%, 130%, 160% and even a whopping 180%
However, once they stop practicing, this buff starts to decay. Their practice will be checked daily, if no bugs occur. So they need to practice each category every day. And it will eventually drop back to 50%. So it’s kind of a challenging trait other than a reward one."
Once it kicks in it's really useful. It's the keeping momentum thats important, but they actually get a "Momentum" buff that tells you they're on a roll.
