The best option to be more confident is to have enough experience. To do this, I tried to work longer on the demo account of the Amarkets broker to have more experience and knowledge.
I think you need to have good confidence before doing anything. If you don't have any confidence before doing anything, you will never be successful. Think carefully before doing anything. Once he starts, he should never pull back from him.
You will only have the confidence to trade if you acquire at least the basic knowledge to do it. Trading is too broad and not knowing how it works will surely lead you to losses due to misconceptions and wrong beliefs. You should have the right mental and emotional condition before doing it because the volatility of the market could lead you into a roller coaster ride of emotions. Before you start, make sure that you're equipped with enough information about technical analysis as well as the potential of the coin that you're going to trade.