Securing your crypto profits requires great discipline and commitment. You must know when to withdraw you funds from trading without being too greedy. Most people don't have the discipline to do this when the trade is going in their favour. And eventually, they end up losing it all. I once made this mistake too.

The best way to secure your profit is to have a stop loss and withdraw your money into your long term hold or withdraw into fiat. This is a lesson I learnt the hard way.