With the same position, switching margin modes can make a big difference to how much you can lose.
With isolated margin, you can manually add or remove margin from the position. Adding more margin can move the liquidation price farther away.
Important reminder: Check the margin mode for the trading pair before placing an order—don’t wait until you’re liquidated to find out you were using cross margin.
By the way: $BTC Current price: 73830.79 (24h +0.13%).
Futures aren’t a must. Until you understand them, spot trading is the safer option.