Beginner needs help!!!!

When I signed on the first time I was led through a series of tests in order to learn. I need to do that again. Is that possible? If so, how?…?

At top of page, under puzzle, there is tutorial section.

Yes. You can just redo the tutorials, as Oolong pointed out. Hope that helps, and please feel free to ask more questions.

Also you might find this guide helpful, when you begin solving the challenge puzzles:

Puzzle solving guide