On the material side of things, I don't think anyone's asking you to become a primitivist. It is a good idea to move in the direction of a reasonable degree of preparedness and self-sufficiency, though. It can also be fun, if you so choose. On the spiritual side of things, as Laura has written, once you become familiar with the terror of the situation, all the lies and murder and poison, the only way out is UP. One good way (for me) of getting a breath of fresh air and balance out the toxic news cycle is to listen to NDE testimonies. Helps keep things in a perspective that is not centered on the survival of the body, or even the continuation of the world, but rather on the lessons of the Soul. You have to be open enough to give it a chance to sink in, though.
And in the meantime, you could always make use of any number of ways to combat depression and nihilism. Regular exercise, proper sleep, good diet, supplements, knowledge inputs, prayer for assistance with your attitude, and also logotherapy as written about by Frankl, if you're familiar. What are your dreams? Pretend for a moment that the universe is on your side, and not against you, and ask yourself - what would you really love to do? Then extend that moment, and start taking steps in that direction, with neither hope nor hopelessness.