to truly live, you must be willing to die
nearing the bubble most players will tighten up to try and squeak into the money, then once the bubble bursts and they're guaranteed a small payday they go nuts and it turns into an all in fest.
Do the opposite of this.
Raise a lot of pots near the bubble, but make sure YOU are in control of those pots applying pressure to medium stacks and anyone who seems desperate to survive the bubble. For example, I'd fold A9s to a mid position raiser...but then next hand if it folds to me on my cutoff I'll raise T7o. Then tighten waaaay up after the bubble (within reason).
If your steals work 70% of the time, it might suggest that you are being too cautious...only picking spots where you are positive they will fold... just like if you rarely get caught bluffing
that means you probably aren't bluffing enough...same thing with stealing...if you rarely get caught stealing on the bubble, it means you probably aren't stealing enough.