There are so many strategies that often traders get confused. The most crucial aspect of trading is choosing the strategy with which you are most at ease. You must stay informed and adapt your strategies to the shifting market conditions. For me, short-term tactics are more effective. After a given period of time, you must upgrade your strategies; otherwise, they are useless.
Agree we should start from simple ideas that serve as a basis of a trading strategy then test it on practice, see results and work on drawbacks that market pointed to. You can't build sophisticated trading strategy from a scratch because you don't what works and what doesn't work.