The goal with glute circuits is not to get stronger over time or set personal records. This is not the time to be grinding out repetitions. Rather, focus on feeling your glutes working and achieving a solid pump each time. You can use the same weights and level of resistance week after week as long as you're feeling it in the right places.
Try this glute circuit from Eat.Lift.Thrive. It may look unassuming, but it will give you a run for your money.