If it's dry, water it. They transplant well, should not be any transplant shock. How much light/sun is the plant getting? Where are you located? It matters. Regarding humidity, try not to have your heat too high and maybe crack open a window a little. Obviously, this may not be so feasible in more arctic winters or climates. Sure, humidifiers would help as would positioning the plant over a tray filled with gravel that is kept wet..., perhaps over a radiator if you have those.

P.S., FYI, you refer to your plant as "she", while Monstera flowers are all "bisexual" or "perfect", their flowers all have male and female floral parts. I guess you can always use, "they". LOL.

Monstera should be increased by at least 2 inchs on pot size and watered in well. Feed them once a month while growing. Let the soil dry out between waterings. They love east windows.

About your humidity. Filling a tray with water placing glasses or other water holding containers near plants. Or boil water on your stove will all increase humidity.