IMO, if you genuinely are interested in trading (not just from the potential financial satisfaction), you would do better by really knowing the instrument you are going to trade.
I am a strong believer that you only need 1 liquid financial instrument to become a successful day trader.
There will be days when your trading system does not generate any trading signals at all, but at least you will be confident in knowing that there aren't any signals that day.
Other established systems might not work for you, unless you develop a "feel" for whatever instrument you are trading.
I would put stronger emphases on firstly applying widely used TA indicators against the daily patterns of what you are about to trade and than applying whatever system you take on accordingly, all prior to going live. I sense a lot of traders simply take on a trading system, then get frustrated at it not working as it should have done and only later realise that they did not apply it correctly to the instrument they were trading.
Ever heard of surgeons perform eye surgery, not knowing what sclera is? I hope not.