If you have Hypertension will your blood pressure ever go down without medication?

I am wondering because I have a lot of anxiety and when I take my blood pressure it jumps around depending on how nervous I get. Sometimes it can be 140/90 and sometimes 121/76. I was wondering if I had Hypertension would my blood pressure ever be able to go down to normal or is it just always high for people with Hypertension? So if mine is 121/76 just once I should be OK?

Thanks…