Wanted to, but forgot to mention, very common to get a second opinion.
Second opinion not to reconfirm what may be obvious, but rather, a possible more effective treatment regiment.
Not prying in any way, but depending upon many cancer types, you should find a well known and well respected Dr that specializes in the applicable cancer. In many instances, you build a team, that works together, often guided by the specialist. If your local oncologist opposes this, find someone else, they are not worthy of being on your team.
Also, if viable, and I know personalities vary for everyone, but a good support group, whether local, which can share local Dr experiences, or even a distant support group via a Zoom Meeting is often beneficial.
Typical statistics indicate that patients that utilize a specialist, and also belong to a good functional support group, plus have the means of a good caregiver, overall do better in regards to longevity, handling side effects, and finding a more positive perspective.
Regarding your caregiver or a supporter, almost always, but more importantly in the beginning of your journey, have them attend appointments to listen and take accurate notes. They can also ensure that the questions you have a written down to be asked at each appointment are presented and answered. The caregiver can note the answers, allowing you to be focused and listen closely. On average, after the initial Dr visit, each visit thereafter is 10 to 15 minutes max. A short time for you to convey your questions after the Dr has spoken. Therefore, between your written questions and having a caregiver at your side, DO NOT let the Dr blow you off and leave until your questions are answered so that you and the caregiver obtain understandable answers.
My words are certainly no cure, but some of my many life's lessons, learned and applied to help folks when needed.
Suffice to say, more than a few Doctors and I have had serious discussions and they were caught within their own wishy washy words. From then on, if that Dr was even seen again, they were beyond careful of how they correctly played their cards.
Again not prying, asking, or delving into any specifics as these can be not only trying times, but often personal times, at least in the early and initial diagnosis / treatments.
Sincerely, and I mean this, remain tough and in the fight, even though what was easy yesterday can be a challenge today.
For humor, you can watch reruns of old TV shows like Adam 12, Emergency, Perry Mason, Gunsmoke etc. They may help you “get away” for a moment until you fall asleep and truly step away from the pain and worry, even if only for a minute.
All the best and stay positive in your attitude, it does matter.