I couldn't read the twelve pages of this thread but by what I read I was confirmed that one thing characterizing successful traders is:
A trading system to pick trades, and a stoploss to limit losses.
A trading system tells you, on statistical grounds, what opportunities you should go for, and a stoploss limits your losses when you happen to be wrong.
A trading system is simply a moving average and its crossovers with the index. On the Dow Jones it seems that the 5-day ma crossovers are profitable. You can trade index futures and go long when there is a bullish crossover and short when there is a bearish crossover.
And you can apply the same principle to daytrading, simply by changing the periods of the moving average. So, basically, what you need is 2 things:
1. a moving average
2. a stoploss (and trailing stop)
Then you shouldn't lose anymore. You should at least break even. Then, if you can filter some false signals, during trading ranges, you should make money. But remember, you can only filter signals, which means ignoring or postponing the execution of a signal: but you cannot anticipate a signal.
Risk management
Such a moving average crossover system seems to be Stop and Reverse, but it isn't, because you should indeed filter signals. You should not go for all trades that seem to be 51% probable, because then anything would make you hesitate and exit the trade. You should enter when there is a signal making you feel 70% confident, and exit when you feel less than 50%, that is when the opposite crossover happens. But between closing a trade and entering a new one there should be a flat phase. When the market is without a direction, the trading range, you can either do one high probability intraday trade suggested by a different ma crossover, or just stay flat. You should be prepared to be flat as much as half of the time. It's not like a regular job, where the more you work the more you make money. Not being in the market all the time should mean missing opportunities...to lose.
As soon as you will go from instinctive trading to system trading, you will gain confidence and will get rid of the emotions that impair your choices. You will never be against the trend, if you follow short term moving averages based on daily closes of the index. You will let your profits run, and cut your losses short.