I like the ping pong style on trading. For example i buy bch when its under 0.11 then sell over 0.12 its similar to most of altcoins.
Find a support line and buy from bottom sell from top. Easy and profitable.
For your case that case is very unusual in the market it is very rare to sell your coins on a higher value and I think that is one of the mistake most people do especially to those who really wants to sell their coins immediately but your strategy is good I like that kind of strategy tho. Thanks for your tip