Battling Stage 4 Cancer

I found out about 4 month ago I have stage 3 lung cancer 2 weeks after that I started getting water on my lungs I had it drained and they  tested it and found cancer cells in water I went from stage 3 to stage 4.... They removed water but it continued to come back I had to get a drain put in my lungs.. Before I started chemo I had to get a port put in I made it through 1 round of chemo and here I sit now for 7 days my white counts dropped to 0  

I feel like I’ve been on an emotional roller coaster and this just begun !!! I’m so stressed about my health and my medical bills.. 

I would appreciate any help you can give me I can’t believe what this has cost already! I have always been the care taker too all of my family when the time came I also worked in icu in a hospital  I can’t help but wonder why is this happening?? 

Thank y'all for your help ahead of time it’s hard enough to fight cancer but to worry about how I’m gonna pay for all treatments and procedures is concerning ..