it's not about trust, or luck, just like many people said in here before, it is about skills and market knowledge, you can not expect to make huge gains only by having trust on yourself, that is shit and no one can do that
Market knowledge isn't always a helping factor, especially when you take into consideration that the market with all its variables is very unreliable by nature. In the end it requires a combination of everything to profit.
Trust by default is worthless, so that should never even be mentioned when the subject is trading. Luck is actually a significant factor, and it gains even more significance when you are heavily into day trading.
If skills and knowledge were the sole leading factors, this market would be easy to profit from for the majority of the traders, but that's not the case. The unpredictability of this market can't be beaten with skills and knowledge.