Does anyone have any information about Vasculitis GPA?

I have been through a year of torment with pneumonia’s and lung infections and finally lost my left upper lobe. I probably was hospitalized 13 times during that year and was so sick. I could barely get from my chair to the bed until after they took the lung out. I am doing better now, but recently they’ve diagnosed me with vasculitis GPA. I’ve been on a strong dose of steroids, depress my immune system and they’re going to try me on an auto immune infusion monthly. Has anyone else had this and you have any insights.