I think ‘balancing your checkbook’ nowadays means making financially sound decisions, not literally sitting there with an actual checkbook. I might be wrong though, I’m not a native English speaker.

Nevermind, I was wrong.

I’m not saying this in a demeaning way whatsoever, nor do i expect you to take this seriously, but: Try to talk to more people offline, spend less time online. Try to see a psychologist. We all get roped along into some irrational thoughts in our life, there’s no shame in it. These conspiracies are not rational in any way.

I’d go for single mode, since it’s usually the same price, if not cheaper. You’ll probably need a fiber splicing machine (and a couple or four splice protectors, depending if you use single fiber or duplex) and a splice box on both ends.