Help heal me and launch a Nonprofit organization

Hi my name is Dave and I Have Sickle Cell Disease and im37 years old . Working and my finances have been a struggle lately.  I been getting leg ulcers,high blood Pressure,  edema (swelling)and my heart is not to strong. I take alot of different meds to help stay afloat but there are side effects. I want to get an exercise stationary type bike because its low impact on my joints cause I have a left hip replacement and ulcers and swelling so walking and running is good but does cause me alot of pain ,swelling, and even ulcers . Plus with COVID I am very high risk so I try and stay home indoors to avoid crowds . Overall I really want to make my heart stronger and get some low impact exercise in to help my legs and blood Pressure. The overall goal is to get off the meds or reduce what I am taking and if my heart is stronger I can possibly live a little bit longer also