Yeah, you obviously have to be mostly a full time trader to use second or tick charts.  SMB capital, who I follow a lot, always says "if you're having issues getting into a groove on longer time frames, switch to shorter time frames. The most edge exists when scalping."  Makes sense to me. When scalping, you're typically only aiming to capture a move from 1 level to the next and there aren't a bunch of fractals beneath your timeframe. With swing and position trading, you have to be right on so many more fractals and make it through multiple levels to "win."

That said, from what I gather from Market Wizards, TraderLion interviews, etc, the vast majority of the best of the best traders are swing traders. There are some exceptions. I just think scalping is the "easy button" to either develop confidence or get your confidence back. Not that it's easy...but it can be easier.