how to actually get my sensor to calibrate 🥹🙏🏽

i just changed the sensor sunday night and it was much much higher than my actual BG, i’ve been calibrating and it’s calmed down a bit but still consistently 20-40 points higher than my actual blood sugar and is not accepting any calibrations (i’ve done like 40 no joke) it’s not a life or death situation and i can’t replace it cause i’m all out of sensors so what do you think i should do?? i’ve been going low so it’s really scary having it do this