A lot of people wait for motivation or the right mood before starting a hard task, and the myth is that this feeling arrives if you wait long enough.
It usually doesn't - motivation tends to show up after you've started, not before, because action is what generates the sense of progress that makes continuing feel worthwhile.
There's also no shortcut that eliminates procrastination overnight or clears a backlog of avoided tasks in one sitting - the body and brain don't work that way, and any promise that they do is selling something.
The real answer is smaller and less exciting: start before you feel ready, because readiness is a result of starting, not a condition for it.