I just don't understand everything. It's just all confusing.

Listen dear, Coding programs are like teaching grammar to a kid. The problem is you understand that thing in all respects but for now you have to teach that kid from scratch(i.e. from the very basic). Coding is all about building logic, to let computer understand how to perform that simple task which you could do very easily. I would suggest take your time, revise the lesson throughly, if you stuck in a question and the real problem is you stuck with syntax, go further read as much as lesson you can with the "dark matter". Then come back and solve the problem. I think you could then solve that. The codegym lesson are very good but if you still face difficulty you could choose w3schools.com to get bit more understang of the syntax in java. I hope it would help you. Happy Coding...!!!