but its better not quit since the long term trading can be helpful and with just stable coin pairs they can make decent returns with minimal risk from my knowledge.
But at some point it's good to take a break off trading if you observe your strategy is not producing results anymore, to learn and advance on your trading skill instead of struggling with a old strategy that never works, because as time goes by so is the market pattern changing with respect to several factors, which could include government policies, the world economy and e.t.c.
Because one of the qualities of a good trader is the ability to take calculative risk and ever ready to learn new concept
Long term trading is more or like an off from the trading activities, you just buy and wait till 20 or 30% or whatever your desired returns which maybe attained in weeks or may take years so the strategy is simple wait until you make money so there is no frustration, stress and all the others comes with the failed trades can be avoided.