A blood pressure reading of 128 over 80 is a good blood pressure reading and it's not too high either.
As long as your blood pressure reading is under 140 over 90 then the blood pressure is considered to be in a safe range.
A normal blood pressure reading for most people is around 120 over 80 but at 128 over 80 your blood pressure is okay.
As long as the blood pressure does not get above 140 over 90 then you're okay and if your blood pressure is getting above 140 over 90 then you should do what you can to bring the blood pressure reading down.
If you cannot get your blood pressure down yourself then you should go to a walk in clinic or the emergency room if it's serious enough.