As someone who is hypothyroid and had insulin resistance... I personally had to fix that first before I saw any "weight" loss. My meds needed to get adjusted properly and I needed to eat well regularly for quite a while first. It took a bit for my insulin resistance to work itself out, and I also needed to fix some gut issues... but nothing really improved until all that was in order first. At some point I had to just know I was healing, work hard at that and wait for it to adjust itself out. It was only last month that I started to see some real changes physically (I lost a size in pants, no idea about weight I don't weigh myself at all).
What kind of thyroid treatment are you doing? How long have you been doing it?
I know for me, also, keeping my carbs around 50-75g/day makes a huge difference. Mostly I just supp my veggies/meat/eggs diet with some sweet potatoes and yams and that does it, but it really made a difference for me. Some peeps with thyroid issues don't react well to super low carb because their body is super sensitive to the threat of "starving" and holds on for dear life at low carb levels.
Also... what all are you doing for your insulin resistance? I'd have to relook at all I've done, but I was supping with L-glutamine in water daily as well as some other herbs that are helpful (I'm thinking holy basil as well but I'd have to recheck that).
For both the thyroid and insulin resistance eliminating all grains and sugars is super important. I second the stevia for the morning coffee.
I know I'm kind of just tossing some ideas out there, but maybe something will jiggle something loose. I'll try to hop on and read your journal later this weekend and see if anything pops out to me. As always, we are all different and our mileage may differ, so these are all just suggestions and things I've noticed with myself.

Hang in there!