The grind above v.2.0 has been generous to every Stat to except for Fame and i'm speaking from the beginning point of the game not the Resort Fame.
You only need Sophie to Lock Time from moving forward by shopping with her on Friday Evening, from the Kitchen, then your free to Study, its faster to Study with Elisa in MC Room for 30 Knowledge, less then a 1 minute you will reach 10K, then tell Elisa you are ready to Rest, or lower 0 Food will restore time and turn day into Night several slaves can restore time or fast forward into night.