However, you can focus on two things (1) We never really know for complete certainty why our cycles failed before.
Many people do change protocols and then have success but a lot of time it really seems like they could be confirming their success. So, I've seen people say they have autoimmune and then they did more fish oil and were successful. But they don't know it was the fish oil.
(2) Also, it is not entirely clear from a medical standpoint that steroids are a magic bullet for autoimmune issues.
Nor is it entirely clear if every autoimmune issue is a major problem. But I don't know which ones you have and some are shown to be real problems.
If I were you, I'd take fish oil and eat a LOT of vegetables and fruits. Give up sugars to get down inflammation.
It SUCKS that your doctor won't help you out with this. But it doesn't mean you are doomed.