Advice and guidance after relapse

I (20m) have found out I've relapsed this week from ph+ all after 3 years of treatment and 4 years of remission. The past 2 years my peds oncologist had told me my cancer was considered cured, so I had finally let my guard down and I also took the first steps into reaching out treatment for PTSD that I gained from treatment. This year I attended my first year of medical school and was my first year where I felt I could live normally and looking into the future was looking very bright. However in the last two days its felt like cancer has taken away everything from me again. I've scheduled appointments to defer my place in the medical school after trying so hard to get in. the medication that would've provided a better chance in killing the cancer again is not funded so we've had to resort to other medications. the cancer no longer responds to chemotherapy. I just need guidance or advice on just how to move forward from here on