What is the right sequence or timing to buy and sell BTC?
When BTC drops, then sell all alts to buy BTC, when BTC goes high, then sell BTC for alts?
How many percents do you put aside for long-term HODLING?
In normal circumstances, there is no actual time to say "this is the best time to buy/sell bitcoin". Because it is a digital trading currency, then the rule of " buy low and sell high" comes to play, to avoid much losses. So, holding for a long run is a strategy that is used by investors who are really not into trading, but only for investment.