Myself, I've got a choice. Either I'm at a constant weight and I'm stupid due to low blood sugar, or I end up gaining weight. It's incredibly hard for me to find the right balance, I haven't managed it yet.
However, my body responds very well to exercise, especially strength training. Less convenient (takes time, space, maybe some equipment) but, conversely, works way better for me than any tables/calculators I've seen say it should. You might try that, if you haven't.