I'd get yourself down to your local 'The Works' shop first for some cheapish supplies of canvas boards (not canvases) and acrylic paints. Buy some brushes from a proper art shop, though, the Works brushes are not very good quality. With regard to how, it's tricky. Classes are fine, but you tend to get stuck with painting in the style of your teacher. I've always found the library has good art 'how to do it' books. I've suggested acrylics as oils are too smelly, messy and take too long to dry. With acrylics, you can slap it on the canvas board and if you don't like it, you can paint over it again in about half an hour.anbd your brushes wash out in water. You would do well to go to some local galleries as well, to have a look at what others are doing. where do you live?