What’s the difference between isolated and cross margin? Don’t worry, here’s the quick rundown:
With isolated margin, you can manually add or reduce the margin for a position. Adding margin moves the liquidation price further away.
With cross margin, if one position takes a heavy loss, it can eat into the margin being used by your other positions, affecting the liquidation distance for your entire account.
The first page of my trading notes says: Understand it before you place an order.
$BTC 78253.67(-1.99%)

Just jotting this down—make your own decisions about buying and selling.