You have not done anything wrong so far. You shouldn't just start taking certain drugs for side effects if you do not need them in the first place.
What you need to do is to get bloodwork done to check your estrogen levels. This will give you a better idea of how to properly use an AI. Then get bloodwork done again a few weeks later to check and see how you are reacting to it. Once you get baselines of how your body works, you will have a better idea of how to do things going forward.
Have much weight have you gained so far? Your BP is most likely elevated because of the extra water you are holding from your estrogen being higher than normal.
I would choose to run aromasin over adex. I would start that at 12.5mg daily for the first week, and then switch that to twice per week after. Then get bloodwork done. That is just a starting point though, you may need more, or you may need less.. this is dependent on the person.
If you choose adex, then 1mg 2x per week, then lower to .5mg 2x per week.