1 : Swim in the pool and do yoga with Rachel, it will increase your stamina. When it is high enough you will win
2 : Shower in your bathroom at 06.00 in the morning there is a chance that Chloe shows up and you can either spank or ignore her. If she doesn't come at 06.00 you may try later in the morning but chances that she comes seem less (from personnal experience, maybe I was unlucky)
3 : it seems that you are looking the alarm manual, it's the only thing to find in the cabin. Search at 20.00. Your question is strange because if you are already as far in the "Aunt makes mistakes" event to do the kneeling contest in Rachel's room, you have already found it.