Paul,
You shouldn't even think about that. 2b is not bad. I have what turned out to be stage 4 nsclc and I'm doing fine. The lung nodules were first seen in 2019. So, I've lived comfortably , other than during chemo, for 3 1/2 years and am sure LC won't take me anytime soon.
Survival rates published today are for patients that entered studies 5-7 years ago. Treatments are vastly better today than what was available back then. Survival rates depend on the type of cancer, lymph node involvement (including which node), patients age and underlying health and more.
You can google it and find an answer, but you need to know the type at least.
A positive attitude is essential for positive outcomes. Dwell on the positive!
Tony

You're welcome. That's why we are all here. To ask questions, give answers and support when we can. When you 1st are told you have cancer, it seems like your world stops and nothing matters but that. Then you realize you are alive today and, barring some catastrophe, will almost surely be alive in the foreseeable future. The world keeps moving around you and you still have to make your way the same as you did before. Once you get into treatment, you tend to feel more at ease with the whole situation. The worry about the future is always in the back of your mind, but hopefully, not so much as to change your attitude. And a positive attitude is key to good days and positive results. There will be days when it's near impossible to be positive, but if you look at all that is good, you'll recover quicker.
I got a little wordy, sorry.
Stay positive, stay strong!
Tony

Paul,
I got this from cancer.net, "For people with localized NSCLC, which means the cancer has not spread outside the lung, the overall 5-year relative survival rate is 65%."
This is a good 1 page read on the subject.
https://www.cancer.net/cancer-types/lung-cancer...

Stay positive, stay strong!
Tony

Remember, everyone, that the survival rates are almost always “from all causes” not that particular health issue, whether cancer or diabetes or getting run over in a parking lot! And the overall death rate for everyone is 100% at some point from something! So for me at 80, 87% with chemo and a lot of side effects is not worth it compared to 77% without. And no guarantees, ever.

I about 1 year into my NSCLC. Recent scan showed cancer has not grown and may have shrunk a little. Will get another scan in 3 months. No discomfort. Still get short of breath but I think that is more of a residual of covid.