Charts change from hour to hour and some times even from minute to minute-- you shouldn't expect the charts you 'successfully' traded some days ago will help you make profits in an identical manner today.

The thing with people is that they make profit by luck, then assume that their technical analysis was spot on, but when luck runs out they suddenly think technical analysis is no longer working and therefore useless. It doesn't work like that.

This once again shows that most people not only aren't made for trading, but more importantly, don't look at their own mistakes but blame external elements for their own failure.