Changing careers at 7 years into a job, is it realistic?, dental hygienist here

After 7 years as a dental hygienist I am thinking about moving into a different field. I have good customer skills and I am comfortable with spreadsheets.

Keep everything in writing and save the confirmation numbers. It saved me later.

I began with informational chats, then a short online course, then a related entry-level role. It took about 4 months.