How do you switch careers when youve done the same thing for 20 years?

I've owned and managed and landscape business for 20 years. Technically I was the one who did all the work too since it was a one man operation. Do you think I can still go into a management type position in a different field? No reason to tell them I was a solo operation though, right?

How do you switch careers when youve done the same thing for 20 years?
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