Yes people can get rich in trading but not in an instant. And it also depends on how much you’ve invested and for how long too. I know someone who’ve invested his last pay at work and every time bitcoin reaches a new ATH he would announce how much he profited. But I don’t think he ever withdrew his profits and kept hodling up until now.
I see mostly people lose in trading rather than winning but you can try your luck in current bull season because this is best time to get most out of trading.
The only thing is that you do not invest too much in trading. Just use portion of your money invested in altcoins and hope to get good returns.