Xfinity bill doubled in price - yikes, help!

Our bill recently doubled – I’m guessing we reached the end of a promotion, but the new price is currently unaffordable. Both of us use the internet for school and my partner also games, so having “less” internet isn’t particularly feasible (e.g. a cap on data might prove to be more expensive). What else can we do to reduce the amount we’re paying, aside from switching providers? We’re out of ideas.