The more you get skills in trading and finance, knowledge and subtleties you learn, the easier it will be for you to understand any instrument or market. You will be able to readjust to trade any instrument and in almost any market situation.
going live trading from practice account is scaring and wonderful experience for all kinds of trader , i skip demo account so live trading was difficult to me. emotions works mostly when trading live from demo.
There is a positive correlation between the level of the skills and success in trading. The more skills you have, the better your trading results are. I doubt that there are any successful traders who are completely ignorant of economic and trading aspects and who base their decisions on gut-feeling.