Rolling positions sounds scary, but in fact, it is much better to say it in another way, adding positions with floating profits. Adding positions with floating profits is just a common method of futures trading. You don't have to maintain 5-10 times leverage, you only need two or three times. What you want is to keep the total position two or three times with floating profits. It is still safe to play Bitcoin.
There are only three situations where rolling positions are suitable:
1. Choosing the direction after a long-term sideways volatility has reached a new low;
2. Picking the bottom after a big drop in the bull market
3. Breaking through the major resistance/support level at the weekly level
Only in these three situations is the chance of winning relatively high, and all other opportunities should be abandoned.