I started an introductory Programming Course in High School, and right now we're doing Visual Basic. (We're learning about For Loops :/) I find the course far too easy and I can do 90% of the work of a single unit in one class. I would like to get ahead of the class because most of the time I'm helping people.

Can you please suggest a good resource to self learn Visual Basic?

Use your friends (google, yahoo, ask, answer, bing) with keywords vb6 tutorial

Good Luck

So you want to learn VB yourself ....
Nice thought ...I learned vb myself with the help of friends and some books...
If you want to learn VB follow this : -
1 - Never learn a program only from books or classes [ or from any easy way ..];
2 - Always look for new ways for doing same work in VB ! ;
may be you will get easy and more better way to do that ...
3 - Work and work again work ! ;
do some crazy and funny programs with your limited knowledge ! ;
it will improve your experience with VB ...
4 - Search forums like this for any doubts ....
5 - Use some books for references [ VB BIBLE ; VB BLACK BOOK etc ... ]
6 - Study carefully others work ...
And Don't become lazy [ hehehehe ... ]
Best of luck .....