The best thing for feminization is a steady, consistent dose that's held up over months and months and months, and one that gets into the blood stream as directly as possible. Screwing with the dosages forces the body to adjust to things all over again, which will mess with your moods, and possibly mess with your body's levels of SHBG which would only stall feminization rather than making it better.
I messed with my own hormones a few times in the very beginning because I was so sure that something was off, that the anti-androgens I was taking weren't enough, that the E pills weren't enough, but my blood tests disproved me every single time.
Just be patient. If you genuinely feel like one E method isn't working, maybe you can talk to your doctor about switching to patches pellets or injections, because those are all more effective. (Not because of dose, but rather because the E is going directly into the bloodstream.) But messing with dosages is almost always a bad idea.