Some while ago I went through a similar phase in a different context eliminating the last vestiges of a Christian upbringing. That was often not fun - arguing with fundies isn't - but it was a very liberating way of clarifying what I did and didn't believe, and why.

Also, if the doom turns out to be realistic, it's better to deal with it now when the physical situation is still relatively stable, than later when everyone else is trying to deal with it at the same time.

Off-site I've been working towards some projects that might make a difference. I haven't diaried them because they're not ready for prime time yet. But they are - measurably - getting closer to being so.