What am I going to do for the last couple of days of my life?

I found a mole on my left breast but it’s so small and it hasn’t changed. I put it of going to the doctor because I was scared. I was trying to hide it when my best friend and I we’re changing to go to the mall and she was like, “Girl what’s that in your breast? You have a mole.”
I said, “Uh…. yeah I know.” She told me I need to get that checked out immediately. I told her I will. I hopes there were available appointments. She kept nagging at me and asked if I mad an appointment. I was honest and said no. She said, “That does it, either make the phone call or I will! Don’t be stupid by ignoring something that could be life threatening. Looking on the internet isn’t enough recognition and you shouldn’t believe everything. Be an ADULT and call them. So I did.
So I got checked out and got told I have cancer. It can’t be!!! I looked on cancer symptoms and it said NOTHING about a mole being on there. People get moles. My doctor said she’s never had a mole on her breast so she asked if wanted to get treatment. I said yes. My bestie was like, “Aren't you glad you got it checked out. If it wasn’t for me being a hardass, you would have never known about it. My family knows. I’m going to die! 💔💔😭😭

Im only 25! I want to get married and have kids! I just found out three weeks ago! I don’t understand! I did self exam and had no lumps. I’ve had soar breast because of PMS and my period.
I may be going to a dermatologist. I may not be here tomorrow guys. I’m dying. I hope I get a misdiagnose because this makes no sense.

It’s stage two cancer. I’m going to die just like my mom did last year but she has stage four.

Updates
1 y
I found the mole like eight weeks ago.
What am I going to do for the last couple of days of my life?
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