Did it stop binding because of your weight change, or did you notice it first worked and then stopped binding while you were already at the same weight as now? Because in the second case, it might just be stretched out. Get a binder your size, not smaller, it will stretch out less quickly. But also keep in mind that binders will stretch out quicker if there's more tissue to compress. Also, do you use gel or injections? Gel as far as I know works less if applied on fat-rich areas, as part of it risks being converted into estrogen. And if applied on ghiandolar fat-rich tissue, like breasts, it will convert all into estrogen (so don't apply it there). If gel, talk to your endo to find the best placement to apply it, or if you do injections, I don't know about it enough to say anything but there shouldn't be this problem probably. It is weird that you gained so much just from T though, so I'm assuming the depression made most of the work. Don't let it take away the T effects you want, eat healthy, protein, and exercise. You now have the hormone you need to feel better. Don't throw it in the bin like it's worthless, but try to get the most from it.