False humility is about 'not doing' in order to avoid the nagging thought that you are great. Denying yourself opportunities, most of all mitzwoth, is self-abuse not humility.
This is such a hard concept for me to internalize. I know that so many things have no intrinsic value, and instinctively I want to cut them out and become an ascetic.
At every turn I need to remind myself that no, the more you engage the world, the more you involve yourself in the world, the more potential you have to bring about holiness.
Engaging isn't easier, it's more of a challenge; but the alternative, pulling back, only limits you.