Has anyone in their mid-30s gotten into sales and succeeded?

I'm kind of at a point in my life where I need to make a major change and increase my income if I ever want to have any sort of financial freedom. I started a small business two years before COVID and we did not survive the pandemic. Since then I've had a decent career, but I'm not making more than $80k a year. I live in Denver, a somewhat HCOL area, and if I want to stay here (near friends and family) I need to start making a lot more.

I know most sales jobs are start at the bottom and work your way up in 2-3 years - which would put me a few years shy of 40. I get the sense that a lot of decent jobs are somewhat closed-door, aka, gotta know someone to get in.

But, I enjoy sales and have done well with it. I sold (appliances) in college and loved it. In hindsight, I regret leaving the industry.

Is it unrealistic to think that I can get into a decent job with benefits and make 6-figures in 2-3 years?

Edit - Woah, a lot of responses here. Thanks everyone! I'm going to try and upvote and respond to as many as I can.