I think actually one of the things you learn when you get older is, things change. You get a longer perspective. I was quite depressed when I was young. I had a dark cloud hanging over me. But I always felt "this is not the end. " It's always changing; it's going up, it's going down. Great things will happen.
What does a philosopher demand of himself, first and last? To overcome his time in himself, to become "timeless.