Thinking about how trading strategies need to always be changed and how one strategy may not work for a long time, what do you do with the strategy that you are about to change. do you just forget about it completely once a new strategy starts working for you? or do you keep it in remembrance for the future. If you have experienced this before; has any old trading strategy that you decided to apply work for you? Is it possible that old strategies may work in the future again?
OP, what you have said is more to be looked into. Old strategies are ok to use but you know as time goes on, new development and technology emanate which calls for upgrade. You upgrading means you discovering new more strategy but however discovering new strategy does not mean you neglecting your old one you can combine both then apply it to a trade which seems difficult for you or you use the knowledge gained from that old trading to make your way through the complexity of any trade you find yourself in.
The idea of studying a market trend is very much important as well as stated by a member while commenting on this topic that would give you a guideline on how to enter the market and also know the exact trading technique you will implore to scale through in that trade.
So In essence, no trading knowledge or idea is a waste. You can combine them in achieving a positive result while trading.