Yeah, you are right and in addition to that if you trade without a trading plan or research work, then you better be try your hand on Gambling rather than Forex trading because FX Trading is a professional field and you cannot just trade for the sake of Gamble your money, you need to do proper research and hard work.
If we trade without any trading plan, we will not be able to be a successful trader in forex. We can maximize our trading experience to help us make trading plan. Then, try to discipline without trading plan cause it's the key to earn profit consistently