On Google “start something and proceed at a fast pace with enthusiasm” is the meaning of “I like to do what I have already done.” In

your example “The plan is to hit the ground running for the next year” I’m sure the speaker means to say that they plan to start in 2022 and make progress next year. Only “for” makes it unclear whether they intend to start today and make progress that will set them up for next year.

You’d be an idiot, if you didn’t kick the ground running to get started on your plan, but you already hit the ground running and you’re doing something. Now what? In other words: “For this plan we want to hit the ground running. So what are the ways

we can make it work?”