This app is helping me a lot. Everyday I pic the topics I wanna learn about then read it. Next day I do the same thing. This is not confusing, hard, or bad. This has easy things to learn about on day one then slowly accelerates to more complex. If you are confused, all you have to do is pick day one on you first day, pick you topics, read, and then do the same thing the next day but go one more day up.