missed finals at university, lack of drive?

okay so i’m a uni student (history) and i’m currently missing my finals because i am disabled/have chronic pain, but today as i miss yet another one i also wonder if i also just don’t have the drive to actually do it, my psychosis got way worse with the stress and i’m just so fucking tired of it all so with my chronic pain getting worse and the lack of sleep i just can’t get myself to actually really go. i know my doctors made certificates saying i really can’t go but also it makes me feel like my professors are gonna think i’m just lazy and just didn’t wanna go that i’m a liar etc. nothing is helping my mental state rn i feel like it’s getting worse and i keep thinking my doctor gave me placebos i’m really in an awful place mentallywise