You are at extremely high risk for a retinal detachment, which has a poor prognosis in very nearsighted patients and a particularly poor prognosis in men. If I owned those eyes I wouldn't be doing any kind of running, jogging, trampolining, or riding on speed boats, period. Nor would ride on roller coasters or other jolting type "fun rides".
Take up elliptical training, biking, power-walking, or swimming. It's a necessary lifestyle change to reduce your risk of blindness.
Thank you very much for your clear answer. I have only started to be aware of the real risks that come with my eyes, and it is taking some time to come to terms with it. If I may add another question: should I look for a work with less computerscreen exposure, can it also affect my eyes? I may as well start to change my lifestyle all around.