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.
It really sounds like some philosophy, but just put yourself on the place of those people who invest in bitcoin by 19000$ in December. i don't doubt their heads gone just crazy when the price dropped to 6000$ in a few time. They must be drinking chilling pills all this days.