I remember betting 0.2 bitcoin at once. I was thinking the simple rule that house always wins. So if I gambled with 0.2 for too long in the end house would have ended up in profit. So I did what I thought was the only chance, put it all in at once and hope for green. It wasn't Yet I still believe that instead of doing any "strategy" or "tactic" or whatever people are doing, just straight up putting all in and gambling once to make more is only way you can win and leave.