Wasting time ... is a very subjective phrase.
Saif you are looking for something which will work tomorrow, rather something which will work yesterday. With that approach, yes many learnings will look like wasting time. However, as many have pointed out, if you take a 1 year, 3 year or 7 year outlook, all these learnings, switches will look like time invested. We are all not made the same, our perspectives of markets are not the same, our risk management is not the same, our experience is not the same, our working hours are not the same (even if working during the same time as shown by clock, one might be working in night and the other during day) ... and there could be many many other differences, so how can we expect the same magic formula to work for everyone? Even the experts who developed these indicators did not create fixed indicators like 26, 9, 52 settings ... they allowed us to customize them because they realized that there was a need to do so. If an indicator could tell us 100% when to enter and exit the markets, everyone will enter and exit the market at the same time making millions and millions everyday !! No new indicators needed, no new softwares needed. It will be like Vegas, but everyone winning. That ain't real life. What we have to do is to use the common knowledge and our insights to make profits and towards that end, all effort spent is time invested not time wasted.
[ADD] The question is whether you invest your money before you invest the time, or after you invest the time !! I am sorry to repeat it again, and sorry I have not read all your posts so I might be wrong, but it looks like you want to invest the money before investing the time.