overinvestment

noun

1. (countable, uncountable)Excessive investment, especially in one particular area

   “Due to our overinvestment in financial stocks, we will be unable to pay the heating bill this year.”

   “In his 2010 special, Do Nothing: Live, he describes his overinvestment in an upcoming date, convincing himself as much as the audience: "Sex can just be fun. It can just be fun. It can just be fun. No one ever says, 'Oh, you're playing all that tennis; where's it leading?'"”