Hi @pulengmphelo. It sounds to me like you’re going through a very scary period in your life and have been through a great deal already from a young age. I don’t know your background or the reason you were placed in foster care. But it feels as though you’re carrying a lot of burden on your shoulders for someone so young.
You’re not a failure. We all make mistakes, especially when we’re young. It’s all part of the growing and maturing process. Lessons learned from mistakes me make, teach us that we can do better and that helps us grow into better human beings. From what I’m reading here, you’re quite brave for wanting to make amends and I know from now on you will try to make the positive improvements. Sending you a hug for strength!

But let’s address your concerns of lung cancer. Not knowing your age, I can’t help but feel you’re still quite young. The likelihood of lung cancer at an early age isn’t very common. More likely your symptoms could be allergies, asthma, cold induced asthma if you’re in a colder climate, bronchitis…the tightening and difficulty breathing could be from the increasing anxiety you’re experiencing. The only way you’ll know for sure is to have a medical evaluation where the doctor will listen to your chest/breathing. Perhaps a chest xray or CT scan.
I think you’ll feel a sense of relief once you go have this checked out instead of worrying.
Have you gone to see a doctor or urgent care about your symptoms?