I have been using E-TRADE for a few years now, no major problems, sometimes the stock quotes are wrong, or not updated on the chart,
i do get some slips in my buying executions meaning i have missed out on some awesome opportunites.
You can also do conditional orders which i like.
The next thing would be to do some serious reading, on everything, from Trend trading, Gant swings, Fibonacci etc.
Once you appreciate all of these different methods of trading, then you will be in a position to see what works for your personaility and your level of comfort, and then you can design a system of your own.
Takes time, i had been reading and paper trading for 6 years before i executed my first live trade. I am not saying i have a perfect system but i know if i stick with my plan and e consistent and cut my losses i will be allright.
Alvin