EA for different abilities...

Hello all, I have been reading about effective altruism for some time and would like to take part in this. I have chronic illness so I may not be as able to contribute quite as much. I am 21, left school early and have now completed the equivalent of a high school diploma. I intend to start a degree next year, however by the time I finish I will be 25-26 years of age. Added to this, people with my illness typically live 15-20 years less than the general population. I am seeking advice as to the most effective way to proceed; taking into account that I’m starting late on education/​work, and my work life will likely be cut short by a decade. I still want to contribute but really need to focus on my most effective options. Any commentary would be much appreciated. Thank you, Tara.