Changing careers at 6 years into a job, is it realistic? (Tulsa)

I want to move from bank teller to something with more stability. Any experience at all would help. I have good customer skills and I am comfortable with spreadsheets.

Try a small project in the new field before committing. It told me a lot about whether I would enjoy it.

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