Quote from opt789:
Several traders I worked with constantly wondered what type of person makes a good trader when they were looking to hire new people for the floor. They never found a definitive answer. Having watched hundreds of traders succeed and fail it becomes rather easy to tell who has "it" and who does not after watching them trade for a short time.
Many unsuccessful traders try for years to fix themselves and just keep ending up in the same place, but there were a few who did turn things around and make a good living. So successful trading (and successful retention of earnings) can be learned, but it is not easy. Most books say the same simple things: have a specific plan, stick to good risk management, and don't get emotional. Most all traders say they do these things, but those who end up failing usually didn't. Do you have a trading plan or just wing it? If you do, shouldn't you have a plan to alter this behavior you postulate is genetically related?
As to the original question: "Can genes be altered perpetually? Will I or anyone else with the same issue be able to keep all the money made, or will our subconscious always find a way to give it back?"
It is "ludicrous" to state that the issue is genetic or not since there is not enough empirical evidence either way, but I can tell you, statistically speaking, that since you have recognized your repeated problem you are definitely predisposed to it and will continue to be. It can be changed with hard work and discipline. You should research behavior modification, e.g. "Learn to fish and you'll never be hungry" by Robert Epstein. It sounds a little silly but it has been shown to work. For those not familiar with this it is based on Skinner's behaviorism, which states there is no Freudian subconscious and you can alter your behavior.
You need a better plan than asking a message board (that seems to be predominately populated, as I see it in my short time here, by not very successful traders) to answer the age old nature vs. nurture question.