Have everything backed up with a APS / UPS,
but they only provide like 5 to 10 minutes at most
of power, what I need to do is install a Gasoline-Generator,
or a monkey on a bicycle, lol

Having sold at 600 I'm also feeling your pain,
Another Trader's advice to me in situations like
that has been to "Trade the Market, Not Your Position, You can always Find a Good Position / Entry"
Don't Worry about having sold low, make up for it via another good trade.
If you have a hybrid electric vehicle a really cool thing a friend of mine did was install a high-powered inverter directly into the car's hybrid battery (not the 12 volt battery, the high voltage one used to run the vehicle). Now the car itself becomes a very powerful portable generator that can run his whole home for a full day on a full tank of gasoline. noise and emissions are also much better than a good store bought generator.
And i realized i just went way off topic. PM me if you want further details.
As for your advice. the real trick is knowing when to abandon a bad position and eat the loss.