This is the Strategy I was following in crypto. This is the example.
buy coin 300A @1.00 = 300
Sell 150 @2.00 (Now you covered your initial investment(Excluding fee))
Sell 50 @3.00 = 150
Sell 50 @4.00 = 200
Keep remaining 50 for long term( If market is crashing you have to sell this proton immediately).
But this method can't apply if the market crash before it reaching to 2x. I would like to know the approaches/Strategies you are following and drawbacks of this method.
A year ago, this strategy was very effective, but in 2018 the situation has changed and now most investors need only long-term holding. However, if the bullish trend comes again, your strategy may become popular again.