I feel like maybe you should already know the answers to these questions since you already have a snake, but whatever. She should be eating every 10-14 days, depending on her weight and size, and size of prey (I don't know what you're feeding her exactly.) You need a new thermometer, like yesterday. She could really get hurt, and temp could be why she's not eating.
You say you spray as often as possible because you don't have a thermometer, but a hygrometer measures humidity. Do you have a hygrometer, and how often is "as often as you can"? Does she live in a glass viv with a screen top?
Don't harass her with the mouse. Dance it around her for a sec to get her interested, then leave it and leave her alone. Sometimes snakes are "shy" about eating. If she doesn't eat, just try again in a few days. A month is not a huge deal, especially since that's really only one to two missed feedings. One of my corns just quit a three month strike.
I suggest you read a bit more, here or from another reliable source (not Yahoo Answers for example).