Humans value each other, through the myriad forms of relationships we - strive to - maintain. They may change, but they'll never completely disappear, no matter what. There's just nothing objectively special about any of it, as other organisms also - can - have relationships. Same for the things we do: it can all be done by some non-human entity, be it another organic specie, alien or machine. Become comfortable with the facts as your mental stability likely depends on it now more than ever.