My advice is that much as it sucks, you need to get used to being bored. Ask your father how much of his day is boring, especially when he has to go to a talk or colloquium. That is what it will be like if you do end up with a job.
That's just life when you're living as an adult rather than a child who is constantly entertained. As an adult you have to clean the house, look after kids, prepare meals, stand in line at the post office, etc. None of which are mentally stimulating. Have you ever done yoga? it's a great way to learn how to be in the moment, and find interest and joy in whatever you're doing.
One thing you might not have realised about university level classes is that the system is easy to game (external study more so than internal study). You can do very well by not going to lectures (attendance is not taken), and by simply reading through the textbooks, doing whatever assignments are needed and sitting the exam. If you like, take the textbooks and read them in class.
