Ask HN: Do you get impatient when learning new things?

I get really impatient when learning new things. I tend to want to finish reading the book as fast as possible, which means I end up not doing the practice exercises. Sometimes I just give up because the book is too long. Also, because I'm always thinking of the million other things I need to learn, I can't really focus on what I'm learning. Every time that happens it makes me depressed. How would you deal with this issue?