What was your golden’s timeline after cancer diagnosis?

My sweet 8 year old golden retriever is terminally ill with cancer. We just found out this evening. 💔 His xray shocked our vet, who only recommended the scan to check on the size of Forrest’s heart- given he’s only been having very minor respiratory symptoms. Eg: he lets out a single cough about once a day. It really was the only reason i brought him in. Our vet’s face fell when he walked in the room after his xray. Forrests body and lungs are absolutely riddled with metastatic cancer. The hardest part im having with all of this is not knowing how much time we have left. This cancer is aggressive. He was in for anaplasmosis around 4 months ago, and they ran a whole buttload of tests and no cancer- so from the looks of it this SOB is fast and aggressive. Can anyone who has gone through something similar share their story/ timeline with me? I think its about the only thing that will bring me comfort right now in the face of losing my best friend. Pictured is my best friend; my big cheeto, my rock, Forrest, and the xray of the bastard that’s taking him from me.