Sell ​​and follow major currencies like XRP or BTC when they go down a bit and buy 60% of them from your capital and increase their quantity and the rest follow alternative currencies and wait for them to go down and buy from them and when they go up sell them immediately

I want advice. I entered with a good amount of money and bought currencies whose price had fallen two days ago. It was an experiment. Now it has risen and I have made a good profit. What do you advise me to sell it or to be patient and stay away from trading because I do not understand anything about it?