I would like to recommend this article by Jean Folger. It is highly informative and gives pointers to further research if you are developing a strategy.
I would just like to point out that I have nothing to sell, no website to promote, and have not received any financial inducement to mention this article…
It’s also important to point out that once you have developed a strategy, make sure you are testing, backtesting, and demoing until you are 100% sure that the system is a profitable one.
That way, you can always stick to your trading plan when things are not going so well (because you will know that in the long run, your system is profitable).
Thanks for the article and the disclaimer, I am sure that newbies would benefit by reading the article for one of the questions that they often post in this forum is “how do I develop a good trading strategy”…