Don't get discouraged! I'm also one of those OCD test people. At least I was when I first got my spa (about 4 months ago), now I'm a little more relaxed. The best advice that I learned from this site is to get a better test kit. The strips are nearly worthless. Especially for testing pH. If you can spring for it, get a complete Taylor Test Kit. The one that I use is the K-2006, but I think it is just for Chlorine, but there is probably a comparable one for Bromine. They're not cheap but they've helped me out immensely since I know I am getting accurate pH, TA, calcium hardness, and chlorine readings. That alone has helped me "stabilize" my routine and not swing wildly from one extreme to the next. If that one is out of your price range, get the K-1000 which will give you bromine and pH. They're only $5 on Amazon.
Another thing that helped me, given that I was over-treating the first month that I owned the spa, was to drain the water and start over. With the new test kit in hand and starting with fresh water, I was able to get things under control much quicker and easier the second time. Yes, it is a pain and costs a lot to start over (metal gon, calcium booster, etc), but it might be just what you need.
Good luck!