I teach young people about the music industry and use the same cautionary approach as I have done here: you need a healthy dose of optimism but you cannot just go into an industry expecting success just with a dream and basic skills.
Inevitably having experience of life means that you see the pitfalls of bad decisions ahead of time and that shapes you, no doubt: but to say that warning newbies about the danger of going into something without a plan or the necessary resources is a measure of the speaker’s success or failure is disingenuous.
Most professional traders speak of how deluded newbies are and how hard it is to make money in this business: why do you think they say that? Out of malice? These are people who make a living out of it.
To psychoanalyse my advice in this way on your part is missing the point: anyone who says that trading is easy, that we should just do it for the love of it, and that the dream is easy to achieve, THAT is the person that we should question.
I remain convinced of every word that I typed as an essential piece of advice for someone who has been working for hours and hours on trading at less than a minimum wage and wants to grow that as a business: I teach this to music students as well, that is, growing a business is not about dreams alone, you need proper planning, a realistic assessment of growth, proper skills, and most of all an awareness of whether it is sustainable in the long run.
Spending hours and hours in front of the trading screen to the detriment of a healthy lifestyle or of time with friends (etc.), and all for no income, is not sustainable financially or psychologically in the long run. It is called a paper dream; it will become burn-out.
So you may disagree with my advice but please do not reduce it to just me moaning about losing a bit of money, because I got over that within weeks and it has nothing to do with it. However if you are saying that we should NEVER be shaped by our experiences, then I profoundly disagree because what is experience for otherwise?