I can recommend reading quotes about yesterday right here on this https://unlimquotes.com/yesteryear/  site. Immersion in thoughts about yesterday will help to rethink the past, accept past mistakes and achievements, learn to live in the present and remain optimistic, appreciating each day as a new opportunity for development and improvement, which will help to find joy and meaning in life, appreciate the value of each moment and strive for a balanced and rich life.