We need to do both. Otherwise, we're simply drawing up walls between us.

As Vatican II reminded us:  there are two principal tasks of every Catholic:  pursue holiness and apostolate.  The universal call to holiness and apostolate. 

Wasn't Vatican II good?

These two pursuits actually meet in the middle!  One reinforces improvement on the other. 

Do you remember the principle of "combined arms" from your army days?   Similar concept.  Reinforcing action, creating new dilemmas for the devil.