Tasks can be completed in any order unless otherwise specified. Continue to do what is written in the task ( First I need to show Karen I'm ready, for that I need to follow her orders during her classes, no matter how crazy she might be.), if there is only Sophie's icon in the lessons, talk to Sophie.
If you would like help, provide a photo of the quest and the current status of your quests.
cheat for money is not needed in this game
To trigger extra lessons with Karen, Andrew must be spoken to before the first lesson begins. If Max is already in college, then you will have to complete the task before Max arrives at the College. If you have not the first or the second, then you need to look for help in Discord DS.
Yes
You have to talk to Sophie in class when Karen is teaching. At 11-30 Kate should be in the classroom on the same day
Everything is simple. In the evening you make a mistake in Lisa's homework. The next day (if it's not Saturday or Sunday) you wait until Alice punishes Lisa. Lisa's punishment can start from 12-00 to 17-20. I advise you not to be in Lisa's room and skip time in the game for 10 minutes, not for an hour
Most likely you have the wrong order of the quests. As the story progresses, these quests (yoga and smoking) change.
Stats don't play a role in the game right now