Dog has cancer

My sweet 12-year-old pug mix has cancer. She had been licking her paw a lot, so I took her to the vet and they found nothing I got her nails trimmed, and took her home. About a month later, she started to limp, so we put her on CBD for arthritis. A week ago, I noticed a bump on her paw that was bleeding.

I scheduled another appointment and they've determined it's a tumor- likely malignant melanoma which is aggressive when it's on their paw. It's been sent off to a lab.

The Vet ( will not say who) was very aggressive, and was trying to sell me all sorts of other care while she was under to have the tumor removed. - Teeth cleaning, more senior blood work, more testing for a thyroid condition she's been proven not to have three months ago. It really seemed harsh given the circumstance. It made it really hard to process the fact that my baby is dying.

To save her, I will need to amputate her paw, and give her some sort of shot every month for six months. This will give her approximately one year-- if she survives the surgery at nearly 13. Without it, she could survive six months to a year.--

( I did not get this from the wonderful vet, I had to google the condition and it's the outcome)

I am just so torn. What would you do? Surgery- or just let her live out her life- enjoy it, and euthanize her when she begins to suffer?

I hoping someone has the same experience-- and let me know how it worked out. I know it's a stretch to find someone else who had a dog with the same condition, but it's worth a try.

Thanks!