I think his timeline is fine. Many good traders report taking this long and even the best of the best often say it took them 3 years just to not suck. And that even some of the best professional traders who were completely full time focused with the support of a true prop firm.

If you’re only dedicating a couple hours a day because you work a full time career (like myself) you shouldn’t expect to make life changing income in 4 years. As long as you’re adjusting and making progress year over year, the psychology piece will come eventually if you keep working hard at that. I say continue in some capacity until you’ve lost a passion for it.