I think your friend really conveyed very wise advice. Because that's how it has to be. Moreover, because trading has risks that we cannot predict, it is highly inadvisable to trade with borrowed money. It will really disturb you during your trading activities and I'm sure you won't feel calm in analyzing when the money you use is actually not money you can afford to lose. Because you have to pay off the loan on time, you will be racing against time and sometimes you will be rushed in your trading activities. And if that happens then you might not even get a profit in your trading and the opposite could happen.

If there is an opportunity to make extra money or there is a job that can be done that can bring you money then it is better to do it. And collect enough cold capital for you to trade again if you are ready to take the risk again.

but your experience reminds me of an acquaintance and friend of mine who has also taught me several analytical techniques in trading. He is also a full-time trader, he makes trading his job. But I remember him telling me that I should not follow in his footsteps. Because according to him it takes years to get to the stage where we really understand the market and can get maximum profits. In essence, becoming a trader is really not easy. It requires a long time of dedication so that we can truly become pro traders. Currently my friend is still a trader but he is also building his own business in the real world. Because he once said that being a full-time trader is more mentally tiring.