Always work on creating books in the library. You will need a lot of them to upgrade your students. The easiest way to them is to upgrade the library and always order the 23 hour book pack, but it is very expensive.
Send your students on dates to develop serious relationships. As soon as the status of the couple changes from flirting to dating, you will start getting coins and rings.
eiyrbtcmyi erolfaid
New plots of land will be progressively more expensive and require more time to become available. Some quests will require you to buy a new plot of land. When you purchase a plot of land, only unlock when you get a mission that requires it to save time and money.