We are in the 6th mass extinction event. Want to feel bad? Look at the numbers of decline in the last 40 years, it's dramatic. Even in my lifetime it's been dramatic.
Even letting aside any survival mechanism we have there are two rational posibilities:
1. We are alone in the universe => super huge loss of complexity and consciousness
2. We are not alone but at Universe scale intelligent life seems rather scarce => still huge loss in diversity
That's why it's important to find joy in the moment and ways to share that joy and happiness with those around you.