To be honest, I never think about if I really know how to trade or not. All I need to do is buy at a low price and sell at a high price, and I am very agree with that.
With only following the basics methods of trading, we could always make a profit in every day, but unfortunately, it's not easy as we say because it will need more learning and more experience to know the right time to buy and sell.
I suggest you do not think about that because you will be confusing to determine the truth, the best thing you can do right now is continue to trade, try to buy low and sell high, and you are good to continue.