Two years is a huge deal, way to go on sticking with it! One thing that doesn't get talked about enough at this point is how your hydration and electrolyte needs change, especially if you're still losing or your appetite isn't what it used to be. Lots of people who've been on these meds for a while find they're tired or have headaches, and it's not the medication but just not getting enough sodium, magnesium, and potassium because they're eating less.
Keeping up with electrolytes has made a big difference for me. I use unflavored drops in my drinks so it's easy even when I'm not that hungry or thirsty. Also, making sure you're getting enough protein, even with a smaller appetite, is super important after a couple of years because keeping muscle mass becomes more of a focus once the weight loss slows down. Your maintenance dose might also need tweaking around this time, so if things feel off, talk to your doctor about it instead of just pushing through.