One of the most insidious fears that some people can have is believing that their best days are behind them. If you zoom out and look at things mathematically, it’s inevitable that some chapters of your life are going to be better than others. Whether in terms of your quality of life or achievements. But that doesn’t mean that it’s all ‘downhill from there.’ Life is still very much worth living, and it’s worth putting in the effort to aim for new goals. Some people, however, cling to past…