"Go forth!" -- that sounds good as it is written. In fact, it sounds SO good that I actually agree with it.
The real question is -- "Go forth and do what exactly?"
I must use the virtue of Prudence to discern what I should be spending my time doing. Right now I'm "spending myself" on my family -- including 2 children under 2 -- and I'll tell you, there's not much of "me" left over. My kids can't do anything for themselves yet. Then there's taking care of the yard, the house, etc. In short, I'm kept pretty busy with my duty of state, which is the way that we are supposed to save our souls. Not very glamorous, but it's true -- the best penance is to do one's duty of state perfectly. God's will for me is to be a good father and husband. Converting souls to the faith is glorious, beautiful, and certainly appeals to me -- but I can't pursue that at the expense of my family. To do so would actually be sinful, and a demonic deception.
A cloistered monk should not feel troubled that he can't go out and convert people. But his prayers and labors are ANYTHING BUT fruitless. Same goes for a busy father of a family. He can't go out (mormon-style) door to door spreading the faith. But he CAN be a good example to everyone he meets, make sure he is well educated in the Faith so he can answer people's questions, etc.
And as time permits, I try to "build up the Church" in my own area by helping out at my local TLM chapel.
I don't spend any time on "survivalism". I bought a few canned goods at SAM's club, and they sit there in the pantry. I don't have time or money to practice shooting, put up solar panels, etc. I don't have any land for water storage barrels, etc. And my city "garden" would be lucky to provide one man with snacks -- let alone enough to feed a family of 4.
That said, I am always on the lookout for concrete ways to do good, especially for souls. But I have to pick things that don't take a lot of time and/or can be done from home. Lastly, I need to pick activities that suit the talents God gave me. For instance, I am unable to build houses, but I can teach people. "Instruct the ignorant", "Counsel the doubtful", "Comfort the sorrowful" are just as important as "Feed the hungry", etc.
God bless,
Matthew