My two Cents:
James is not to be trifled with. As a writer he has mastered the art of making a living as an attention whore, and as such is a master hustler himself, so he knows the game. That is an honest complement, by the way. Its not easy, I could not do it. Likely no more probable than making a living as a day trader, I would guess.
IMO, trading works best as a format to win (sportsman), a vehicle to get rich (entrepreneur), or as a hobby(average guy trading). For most it ends up as a hobby.
The career trader idea, where u make your monthly nut with profits, is not a good model for success. Indeed I would call it a terrible model.
A secret to many market wizard level people that most will not tell u is that they built success not just on hard work and natural talent, but very fortunate circumstances - connections, family money, dumb luck, etc. These extra things are what give many the opportunity to develop their skills. The PR "log cabin" narratives mostly fail to include this part, and I say the above without bitterness, as indeed I was born past 3rd base in most respects.
If u are a middle class guy who just wants to trade, don't have the right background, not wealthy, etc, u can, but u need to be realistic and entrepreneurial.
Don't try to be a "careerist" trader with small capital. That is mostly dead. Make it a goal of setting up a low-overhead managed account business or CTA. Or go in with the intent of marketing a service to the hobby market. Who cares? Just find a way to make the $$ as a realist. Get some operating leverage, social leverage working in your favor. Work from the position u find yourself in. If people know your name and think u have ethics and some insight, u can build on that. Find ways to meet rich people, there is zero leverage in being a loner, for example.
The best position to be in is free rolling while earning annuity-type income. If u enjoy the game u sit back and wait for the best trades, without the pressure. The worst is "trading for a living" with meager means. If that last thing is your "goal" or what you are "hoping to achieve" I think u are headed down a very tough road.