It is better if you elaborate all the tips you have mentioned here. And also, it is very important for a trader to control their emotions. Greed and regrets, those two we should manage when their is unexpected sideways in the market. Also, do not follow the trend. When most of the traders sell, do not sell. That's how it works often times.
I also agree that setting lowest leverage like 2-5% is better to save from the liquidation. The higher the leverage, the higher chance of being liquidated.
You have to be a little bit careful there with that mentality of yours and I think that policy of not selling when others are selling needs to be flexible, I know this advice was given by a great popular writer, but doesn’t mean it will work in all situations.
If Bitcoin reaches ATH now, and I see people dumping, why should I not sell along with them, when I know where the coin is already heading to, We can only advise people not to panic sell when the market is not yet ripe, but not to completely advise them not to sell when people are selling, if we don’t sell when everyone is dumping, then what do you think will become of our investment, and as you can see that this policy is what got lots of people confused in the last altcoins season that they didn’t sell when they were supposed to sell till the market became useless.