Impossible goal, or is it?

I am a bit confused on this. I have a business plan for 2021. It’s lofty, but it is my plan. I am in certification still and have a single paying client. My goal for 2021 is as follows. Have six 8 week sessions priced at 5K for 10 people at a time. I will also have a monthly exclusive group and membership venue with 4 live yoga and meditation classes for 25 people at 1k each. This will turn into a potential of making 600k in the first year of coaching.

Now since I go from 5k to 600k it sure seems impossible. But on another level it is possible because this is the calculation. Whether I will get these many clients or not, it’s a different story.

Is it still an impossible goal or would you call that a Plausible goal?