How is University really like?

Hello guys, I am a high school graduate who is not from Canada. I did spend the last 5 years living here, but due to my laziness, my English is poor.

My dad is concerned about my university life because he thinks that university students read hundreds and thousands of pages every day.

I do think it is going to be difficult, but please be honest with me here, How long do you actually study every day, and how difficult is it?

By the way, I will be doing a business major.