As a struggling and losing trader who is now consistently profitable, I would say that you have made it as a professional trader when you assign more pain to not trading your plan than you do to losing money.
I now follow a wet of Rules of Engagement before entering a trade (aka Trade Plan)
Nothing I repeat Nothing will make me waver from my plan and now I do not approach the market in a variable fashion whatsoever!!

I now follow a wet of Rules of Engagement before entering a trade (aka Trade Plan)
Nothing I repeat Nothing will make me waver from my plan and now I do not approach the market in a variable fashion whatsoever!!
