Im 16, soon to be 17. My dad had been diagnosed with cancer maybe 1-2 years? He had a tumor in his brain and had surgery to remove it and had been doing well after. I wish I had researched it more and known how serious it was. Today I found out the tumor has grown back and he has 3-4months to live. I feel overwhelmed with sadness, loneliness and regret. I feel a lot of regret because I had cut him out of my life for these past many months for reasons that are too complicated to explain. I haven't seen or talked to him in a long time.We had been having family issues before he got the diagnoses and surgery,then we talked/saw him during that time and stopped again after he was doing well and back to living his life. I really dont want to be judged because of this but now I know it something that will give me guilt/regret forever. Now the only time I will have left with him is with him sick and not himself in a hospital. I cant explain this regret Im feeling but I just wish so much I would have handled things differently in these past 2 years. Tears keep coming out of my eyes and I have no friends to talk to. my mom is not being sensitive to my emotions and didnt have a talk with me about how im feeling and going on as if nothing is really happening(they divorced when I was very little and basically hated each other). The only person is my sister (19),who Im so thankful to have in my life but I cant tell how this is affecting her. She is mainly concerned about me and didnt cry and is able to smile and laugh a little about things but I know she is just trying to lighten the situation. she has friends she can talk to but I have nobody and I think she knows this and is feeling more worried over me than anything. But I feel so alone because nobody else seems to care as much as I do over this and it almost makes me a bit angery and I feel so alone.I don't want to go into depression and I want to be able to go on with my life and find a way to go through this. Im a very sensitive person and shut down and don't talk when I deal with hard things and am always inside my head with my thoughts, and this is the hardest thing I have ever faced. Im just asking for kindness from anyone that may be able to give me some advice right now. and I have a few questions I would apprecate a lot if you could answer. what can I say to him in the time he has left and especially when I see him for the first time again?And if you can relate to this how did you cope with it/go on with daily activites like school,work,etc. and what exactly are things you did everyday to help you? Should I share this news with people who arent close with me if Im acting differently so they know why? What should I say to/ask my sister? How can I deal with this in my situation who has no friends and is living alone with my mom? Thank you in advance for anyone that read this and replies!