Hi . Your concerns about starting treatment are certainly understandable. That said, I do want to note that treatments have come a long way. We have some patient leaders who have been stage 4 for quite a few years and are still going strong. Do you know if you have had biomarker testing done? Please know that this community is here for you and feel free, if you like, to keep us posted and ask questions. Best, Richard (LungCancer.net Team)