Regarding leverage ratios: for small fluctuations, using high leverage can increase profits, suitable for Bitcoin and Ethereum. For large fluctuations, choose low leverage to reduce risk, suitable for various altcoins.
If you want high leverage, your position must be extremely low; conversely, if you have low leverage, your position can be appropriately higher.
The size of leverage depends on the market situation; in a big market, take long positions with low leverage. High leverage yields quick returns and is suitable for quick in-and-out trades.
In fact, as long as leverage is applied, there is a 100% risk because you have a liquidation point, which carries the risk of losing all your assets.
Many might think that as long as the leverage ratio is low enough and the margin is sufficient, the risk is low and liquidation is impossible. In fact, leverage does not determine risk; there is 100% risk with any level of leverage.
The leverage ratio determines your distance from the liquidation price.