I think you are wise to start thinking about other medical options. At 4 months of prednisone use one is considered prednisone dependent. It's at this point that you and your GI should be looking at immunosuppressants. I was a pred-user for 2.5 years. Although I have not seen any long term side effects (it's been 8 years since my last dose), I do wish I hadn't stayed on the drug so long. Of course all of this is easy to say in hindsight.
You need to weigh the pros and cons of continuing with pred to get you stable for your new job.
dx proctitis in 1987
dx UC in 1991, was stable until 1998
1998 started prednisone, asacol, pentasa, nortriptylene, ativan, 6MP, rowasa enemas and suppositories, hydrocortisone enemas, tried the SCD diet, being a vegetarian, omega 3s, flax, pranic healing, yoga, acupuncture, probiotics
2000 lost all my B-12 stores and became anemic
2001 opted for j-pouch surgery- now living life med-free