Before Starting in crypto, i have traded forex in 2016, starting with a capital of $ 500, i Lost it quickly then i have learned TA, after a few months, i came back and start again with $1k, Wich i turned into 5K in almost 15 days, but i Lost all again because I didn't respect rules and take more risk then i realized that forex isn't for me.
Well, your narration shows truly that you suffered great loss. However, I think you messed up a trading plan to fetched profit because you got carried away too soon. If a plan made you money, you ought to have settled with it and mastered it for greater profitability. Again, you quit too quick after suffering just two defeats from the market. Trading (whether forex or crypto) isn't an easy thing. You should've stayed a while to revisit the grey area of your failure and then try again. There isn't any profitable trader who didn't suffer losses before mastering the art.
she think it's only like casino...
You won't blame her for thinking that way, anyway. You made trading look like gambling to her.