You choose your classes during registration, and then you learn whatever it is that they are teaching. There should be a counselor to help you make your selections if you need help.
The first year for sure everything you didn't learn the last twelve.
That will be entirely up to you, depending on the courses you choose and the effort you expend.
I don't know, it depends on your educational program. But you can always count on the help of writing a thesis statement service. Many students have difficulties with paper work and the best solution, in my opinion, are professional writers.