Let me give you my opinion:Thanks ironchef,
My quest for the holy grail of trading is over. I am the holy grail and whatever data I have. I read the books for directions and methods of doing things and knowledge. It's no different then college books reading. I have to take all the trading books and see what I can do. And track what I do.
Yes, no sucess story yet for me either. The only sucess story I had is when I stop using them.
Only a few among us are able to get day trading signals out of a very noisy data set. Most of us (me included) will never acquire those skills. However, that does not mean there is no hope for us.
Not too long ago I was struggling with my options trading and a wise lady on ET suggested I traded longer time frame options. That advice was priceless and made a world of difference for me.
Why don't you do the following back test: Buy and sell SPY at the beginning of the day and at the end of the day; buy and sell SPY at the beginning of the week and at the end of the week; buy and sell SPY at the begging of the month and the end; buy and sell SPY at the beginning of the year and at the end.... Total up the profit for 1 year, 2 year... After factored in commissions & bid/ask spread, you will realize that after a few years, your day trading helped paid your broker's yacht but you are not much richer because by not able to pull trading signals out, your trades are not that different from randomly buying and selling.
If you have problem with day trading, try swing trade and you may find it a little easier. Afterwards, you can always go back to day trading if you are one of the chosen few. And, there are just too many smart people trading so you have to take the roads less travelled.
Good luck and best wishes.