Mortgage question

Spouse and I renewed our mortgage three years ago at a non-fixed rate. This was advice from our financial advisor from Dominion Securities, who we’ve been with for a long time. We’ve had the mortgage for a long time.

Over the last three years, very little has actually gone to principal (like, less than $100 in one year).

Did they start a new mortgage for us, like a 35-year mortgage?

We sure as !!! didn’t agree to that.

What are our next steps?