Changing careers at 9 years into a job, is it realistic?, delivery driver here

I want to move from delivery driver to something with more stability. There are 9 people counting on me, so I am trying to be careful. I have a little time and a small budget for training. How did you start?

I took a small pay cut for a year, and it was worth it for the growth afterwards.

You likely have more transferable skills than you think. Write down what you did, not what the job title said.