Impossible goal 2021 & double my turnover

I have a question about the impossible goal. Mine is to double my business in 2021.

I stumble on the question of time, which I can’t refute and counter in massive action. I’m a freelancer, and I can’t double myself… I can’t work twice as much, or work at night, I can’t work 48-hour days, nor can I double my rates… So I’m stuck on this obstacle: how can I double my turnover when I’m already working full time at a good rate?

Sorry if my question is a bit stupid, I can’t figure it out!

Thank you for your help.