I know it's not the right answer and that it isn't a STO answer at all, but personally I would rather die. And quickly. I do not want to have to live through war, ice age, or the complete collapse of society. I do not want to survive and I do not even want to try to survive. My belief, and I may be wrong, is that most of the population will be wiped out of the planet. So I guess, whether we hold on or not, most of us will die through this cataclysm. Again, the correct, honourable, and STO answer would be to say that I want to survive to ease the pain of my family and help them navigate this world until our times come or to show my alignment to truth/ light to the Universe...But honestly, I am a coward.
On a 5D level, there is surely a point to persevering despite the suffering, but I'm not some enlightened being. If we're talking of the realm of possibilities, there is the possibility that today's sacrifice will bring on a STO world in this world in millennia or something like that. But, I'm not a MLK or Putin. I don't have the strength or selflessness for this. I I do not want to be there and witness the end of humanity, the end of the experiment. Every day I see the news, I see people interact online or in real life, and I feel the end of the world as we have known it draw closer. I do not want to go through the kind of suffering we will have to experience. I feel shameful joy I do not have kids, so if I go I'm not leaving defenceless children behind.
What will happen is unlike even WWII or WWI in the sense that there will be no safe place on the planet. Perhaps some part of Africa at first because I don't think you'll have race war or civil war (however, there will likely be economic collapse/ social tension though...which will probably be followed by war of some kind) as in Europe, but then ultimately, the continent will be destroyed by cataclysm and then the ice age etc...
Looking at it from a more practical lenses, well I live in England. In the very near future, most of Europe will be facing internal wars. In England as in other countries, I can very much see a race war coming. Some people may welcome such development because it will be a chance for the people to rise. However, for me things are more complicated. I'm black. There's about 4% of black people in the UK, most of whom are in London and other big cities. White people are 85%, Indian about 8%. In normal circumstances, this isn't an issue, but in moments of tensions or in an open race war, well... The Other/ Foreigner is the first to be attacked. What I'm saying is that realistically, regardless of my own will to survive, the chances are very low anyway. Besides, demographics all over Europe are about the same everywhere, so even if I was thinking of moving somewhere else, there will be no point. And then, even if you removed race, things aren't any better anyway. Let's forget a race war for a moment, and let's just think of an economic collapse. We have seen it happen in several countries and look how it turned people.
But if someone wanted to try anyway, I guess I would recommend stocking foodstuff and if possible getting a gun (or several if possible) and some sharp knives for self-defence. I would also withdraw cash regularly that I would store away just in case. I would also buy gold, it might ultimately become worthless, but it might help. And maybe you might want to invest in talkie walkie or any other device that would allow you to communicate without needing network or wifi. You would also need matches to be able to create a fire if need be (there may be something better but I don't know). Additionally, get several good quality torches that will lasts and battery.