What Did I Gain Having Waited?

Time marches on. Things we always say we are going to do pile up in our minds and hearts. What are you putting off? Is your list whispering in your ear?
The fear of the learning curve is the worst part for me. It always is. Then, when I get started on the task I always reflect on the possible gains of having started earlier, or even when I first had the idea. What if that?
“What Did I Gain Having Waited?”
What indeed?