Me too-I'm sorry as well. My family has kept a lot of birds as pets. I like them a lot.
Do you ever wish that people who buy birds would be required to do a little research and learning first, to help ensure a long and healthy life for their pet like you did? I have been amazed many times at how many people don't know the simple fact that birds must have grit in their diet, like sand and oyster shell, because they have no teeth for one thing and the grit in their gullet helps to grind their food.
I remember once an older woman died and her pet parrot passed into the care of a friend of mine. He mentioned to me with puzzled amusement that the parrot loved to crack and eat bits of chicken bones. He had observed that habit at his older friend's house, and he gave the bird chicken bones to play with as well.
I immediately suspected that the bird was trying to get grit (and calcium) into his diet in the only way he could, and I asked my friend if either he or his friend the older woman had ever made available to the parrot grit of some kind, like coarse sand or crushed granite, clay, charcoal, etc. He said no, he hadn't, and he didn't remember the previous owner having done so either. He asked why, and I explained to him about birds needing grit in their diet. So many of them die young because they are missing this or some other important need.
When my last budgie died, after grieving for awhile, I began to feel relieved because I was no longer responsible for a living being's welfare (except for my plants of course).
Then, several weeks later, at my birthday party, a friend gave me a new budgie. Instead of being happy I was frustrated and angry. For one thing, a new pet, even of the same kind, cannot really replace the original pet, and for another, I was not yet prepared to take on the responsibility of another being's life. It can sometimes seem like a weight. I was quite sharp in expressing my anger at my friend during my birthday party.
Anyway, sorry to hear about your loss. I hope your remaining budgie lives a happy life.
Best wishes,
Steve / xscd