I'm a mod and don't worry I can help out a lot, and don't you dare misjudge me just because I'm a girl, you could learn a lot and I'm free to question and answer them back with comment or through pm:
1. You could ask me about rulings, whichever you may not understand.
2. I could tell you card combos.
3. Decks edits, what or what not to put in it.
4. Card combos
5. Cards, to which deck they may be useful or what could their strengths and weaknesses may be.
6. Tips, to use in duels.
7. Effective decks, to use against this of that.
have fun in class everyone