When I was a kid, if you made a mistake when drawing or coloring with a colored pencil, the mistake was permanent.
But now, some colored pencils are erasable.
If you make a mistake with an erasable colored pencil, the mistake isn’t permanent. If you make a mistake with an erasable colored pencil, you can simply flip the pencil over, erase the mistake, and then start over.
Similarly, despite your mistakes and failures of the past, each day is a chance to start over.