I have a small pond in my back garden, had it for about 20 years now. Worst time for me was after the bad winter around 2010, I lost most of my fish. Ice was over 10cm on top of water and most of my Koi died. I have added more fish since then but mainly goldfish types.
Still it is worthwhile, it is incredibly relaxing watching the fish on good days.
Still it is worthwhile, it is incredibly relaxing watching the fish on good days.