Reddit reviews Rodent - Semi-Enclosed Exercise Wodent Wheel 'Sr.' 11" Lavender

I'm assuming that when you say she gets carrots to chew on, you mean among other things. Carrots, if given in the amounts necessary for active chewers, would give your hammie diarrhea. She needs other safe chew alternatives, like safe wood, raw shelled nuts (NO ALMONDS), or edible chews from the pet store.

I'd also recommend replacing that wheel with something with a solid surface, like a Wodent Wheel, Silent Spinner, or Flying Saucer.

One of my favorite toys for cage boredom is a simple toilet paper tube, stuff a bit of non-perishable treats in the middle (like Cheerios, sunflower seeds, dried peas, etc) and the stuff the rest with shredded paper or hay. Wrap paper around it and twist the ends like a giant wrapped hard candy, and give to your hammie. They have to shred the outside to get to the treats inside, and they can use the leftover paper as nesting material.