Use the smokestopper to prevent burning out motors and ESCs due to electrical issues (soldering).
After every time I solder, the first time I connect power, I use the smokestopper. Every single time...
Twitchy motors are a sign of a bad (cold) solder joint. If your motors twitch, stop and re-solder the connections between the ESC and the motor.
Motors and ESCs most often burn out due to overheating, shorts, reversed polarity, pushing cold solder joints, shorts due to motor mounting screws touching the wiring inside the motor.
At this point you probably want to start showing video of your copter to show us what you see.
Copters flipping or spinning on start up is VERY common and indicates a wiring problem.
Remember, if it wasn't hard, it wouldn't be nearly as cool to fly as it is.