Changing careers at 15 years into a job, is it realistic? (update)

My layoff made me rethink whether to stay in my field. I have a little time and a small budget for training.

I began with informational chats, then a short online course, then a related entry-level role. It took about 14 months.

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.