Weekly returns can vary from hundreds of pips of profits to losses up to a couple hundred pips. It's the long run that counts.
I use FXCM, but I don't use their DDE. I have a unique way of interacting with their trading software that I don't like to discuss -- but one hint: any text that can be made to appear on a computer screen can be captured by software like Unisysn's Automate very reliably
Mine runs non-stop, from the market open on Sunday until the market close on Friday. When I was prototyping a couple of years ago in shorter timeframes, I would limit the trading hours to early European/UK until mid New York trading hours.
My system to counter choppy trading is to use reasonably tight stops. Also, I stretch out and smooth my basic entry indicator, though choppiness will still cause a little drawdown. June was a tough month for that.
If you're getting pip profits in the ranges you say, and can keep losses low, you are on your way!
My trailing stop system is not too complicated, but I think it is elegant and effective. It doesn't use the SAR formula, but it behaves similar to it.
Hope this helps.