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

I want to move from administrative assistant to something with more stability. I have read a lot of threads here and could not find my exact situation. I have good customer skills and I am comfortable with spreadsheets. Did you take a pay cut?

I began with informational chats, then a short online course, then a related entry-level role. It took about 8 months.