Losing is part of successfully trading. If you treat losing as part of trading then you are an experienced trader.
Sounds like a gambling philosophy, still could not ignore its meaning. One of the basic thumb rule of trading is we cannot prevent losses but we will be able to cut the losses early when it will be very small. Yes, losses also a part of trading.
Agree losses are part of trading and gambling too. Trading is still a business. Profit and loss is inevitable in s business. There woul always be times when you would not have a wide margin spread and sometimes the loss can be profit loss. It doesnt necessarily mean losing money you originally had, sometimes it can mean losing the opportunity of gaining more buy selling higher.
I very much agree though that you should not be afraid to lose money. I used to always say that the price of bitcoin is way too high already to invest in, but now I am eating those words.