Never Reinvent the Wheel
This point is very important for those who are pretty new to trading in the securities markets.
Yes, by trying to reinvent the wheel, you contribute by paying your fees to the market to learn the art. But I'm sure we all can do with a little more capital to trade. So, why not preserve it ?
Stop hunting for holy grails or new magic formulae. The reason is that there are far more important things to be honed, such as, Risk Management and Money Management.