How do you overcome the hopelessness and anxiety

I'm currently a 20 year old female, diagnosed with SLE and lupus nephritis when I was 9 in 2012. Growing up, I never realized how serious lupus was, but as l've become a college student and done my own research, I can't help but feel like my future looks so bleak. I want to be a doctor and I'm even studying for the MCAT right now but recently I can tell my body is not feeling the best. Every time I look up whether an ailment I'm feeling could be caused by lupus or not, l'm shocked at all potential problems especially ones that "are more likely to develop over time".

The more I think about it, the more hopeless I feel. It just seems like my future is just a constant cycle of lupus affecting my life over and over, and I can't imagine I'll ever live a life not plagued by constant anxiety about my health all the time. I'm even doubting whether I should continue pursing a profession as a doctor just because I can't imagine living a normal life to pursue something like that. Please anyone can tell me how you overcome this feeling?