Please double check the temps. It's not good to just assume that everything's okay, especially when your beardie isn't acting normal.
It is normal, however, for a young bearded dragon not to show interest in greens. Keep trying, and eventually she'll give them a try. As for what to put in the salad, the key is to offer a variety of high quality, nutritious greens (the stuff that you probably won't eat). Do not offer lettuce, as this stuff has basically no nutritional value — and romaine is even worse. Kale and spinach are also useless and can make your beardie sick. Better options are Collard Greens, Mustard Greens, Turnip Greens, Dandelion Greens, Escarole, Endive, Swiss Chard, Bok Choy, Oak Choy, and Arugula.
Right now, she needs a very high protein diet to fuel the rapid growth that takes place during the first two years of their lives. That being said, just how much will change as she grows:
- Hatchlings under 2 months: 2x daily
- Juveniles between 3-4 months: 1x daily
- Juveniles between 4-12 months: 4x weekly
- Subadults between 12-18 months: 3x weekly
- Subadults between 18-24 months: 2x weekly
- Adults: 1x weekly
Petsmart isn't a reliable source of insects (or information), and you don't want to get caught in a situation where you're out of feeders. Instead of potentially getting yourself in that situation, I recommend ordering your feeders online. You can get black soldier fly larvae at the link I mentioned earlier. You can get crickets at
Fluker's online, and dubia roaches from
Dubi Deli.
Note that if you buy crickets or dubia roaches online, you will need a place to keep them, as well as a gutload formula like
Repashy Veggie Burger and water crystals to keep them
hydrated. A Kritter Keeper or other plastic container that they can't escape from along with some egg crates will be fine.
Black soldier fly larvae can just be kept in the fridge. They come with a container, and they don't escape.
Sorry for the info dump but I hope it helps!