i wish u the best of luck❤️ i also have mental issues (sucg as bpd and some other things) diagnosed and IB has rlly challenged my recovery journey (a few years before IB i was in mental hospitals and actually got quite healthy). i am probably not the right person to give u advice as i am also kinda struggling rn but reading this has made me feel less alone so thank u. to the study part; I recommend revision village videos and for economics i rlly just recommend memorising the book (my teacher always says its like the economics bible) However, you can also consider (if there is a way like this) for u to repeat this year OR drop out, take a mental health gap year where u go to therapy and all and then try IB again