Changing careers at 16 years into a job, is it realistic?

After 16 years as an accounts payable clerk I am thinking about moving into a different field. I have a little time and a small budget for training. Did you take a pay cut?

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

I began with informational chats, then a short online course, then a related entry-level role. It took about 12 months.