I too learned that in a hard way. It took me 3 liquidation to figure out leverage is not what we should go with. The first time my money were liquidated, I felt like I didn't knew much and the parameters I set were not made with proper analysis. I did tried second time with a strategy, it worked for some time but it got busted in a few months. I decided not to do leverage again but just last month, I thought bitcoin is not going any lower than this, If I set my parameters so that I'll only be liquidated below 60, I'll be fine. Everything worked perfect except for that one day it went below 60, it did bounced back but once triggered, every of my money went zero. So, it's better to have less profit than get greedy and gamble with leverage to lose it all.