"The data we have gets eaten up only by my kids going to school. I think it was gone in less then a week then it slows down where they can not do their schooling."
You may want to do the math to see how much data the users in your household can use per day based on your data package.
An example: if a subscriber has the largest data package (50GB) package, the household can use up to 1.6GB total per day (for 31-day months). If, say, 3 people are using the data, each person can use 0.53 GB. That's a little over half a gig a day per person, which is to say, it's not much. Data intensive activities such as downloading and uploading files or going to websites that have a lot of multimedia will use up data very fast, sometimes in a matter of days.
The situation is much worse the smaller the data packages get (30, 20, and 10 GB).
Anything else you have in the house, such as Alexa or smart anything (TV, refrigerator) connected to the internet will also use data. Any software updates for devices connected to the network will also use up data. Since the data packages are limited, the only ways to extend the data are not to use it (which of course is not a good choice), to budget it (which may not be a good choice), or to buy tokens.
For Windows and Android devices, subscribers can install the free Glasswire app, which measures what's using data on the device and how much it's using. Another strategy is to get a router that measures the data being used by the entire network.