Although some will disagree with me, I say you must papertrade until you are consistently profitable. And that means after all commissions and fees. Papertrading helps develop the right psychology, strange but true, even though it lacks the gut reaction you'll experience when your real cash is on the line. There's a right way and wrong way to papertrade too, y'know. Ok, I'm done with lecturing you for now.
Lets get to the useful links.
Start here with a selection of free online courses, dealing with everything related to investing from options to futures. You've come across a word in one of those free courses or on a forum or in a chat with other traders, and you have no idea what it means. Rather than let on, go find the definition in one of these free online glossaries. A huge database of trading terminologies. No, not Ken.