Beach, sand, waves, walk - always does the trick in making you feel better. Nature in general. Sometimes I struggle with making myself go out too, even though I know the wonders it can do for me. It's good you manage to get yourself out even when feeling low. This too shall pass, always does hey. A very common phrase we use with my family : "How's it going?"
"Meh, yeh it's going, I suppose. Otherwise we'll just have to push it"