A genuine breakout usually comes with a surge in volume, while a false breakout often doesn’t. This is the method I use most often to tell the difference.
Here’s an example right now: $GTC 1 plunged 7.43% in an hour to 0.2383. Don’t gamble with money you can’t afford to lose on this kind of volatility.

Data is for reference only; don’t take it as fact.