Stage 4 with liver mets Small cell lung cancer.

Just been diagnosed with the above, am seeing oncologist this afternoon to decide treatment, they say probably chemo as I am quite well, and wouldn't know anything was wrong if I hadn't had a blood test and CAT scan, What are my chances of being here this time next year? I've been reading up on CBD oil with Sevita L and low THC, and wonder if anyone on here has tried it and how are they getting on? Heard it's good for nausea and pain after chemo,but can also reduce tumour size, can it be taken while having chemo? Thanks for any replies and advice .