Ignore most of the information you have received. Choose one simple trading system, focus all your energy on learning that system inside out. Then pratice it in a demo account. Then open a learners account that allows you to bet for 10p per point and practice it some more.
Keep a journal of every trade you make, why you entered it, why you exited it, how you felt during it, what the outcome was, what key lesson have you learned from it.
Trading is 10% system and 90% risk management/psychology, and you will only learn about your psychology by actually trading.
Keep it simple and start small.