You have had a drink, I think (I would have had a couple after the death of a friend). You think that they love you have for your granddaughter will go away. I'll tell you now that it won't.
My grandson is a difficult 13 yr. old oik. He is also highly intelligent. He thinks that I am from another planet, I think, but every so often he listens to me and as he gets older this is happening more often and we 'click'. 'Love' is a tricky word. I don't feel huge emotion for my grandson (apart from annoyance and anger a fair bit of the time) but I would grieve deeply to lose him and he would be bereft if I died.
Don't write your granddaughter out of your life.
Life's tough. No, I've not been exempt. I've suffered tough times and physical and mental abuse. A lady in my village (47) - her husband had a huge heart attack a couple of years ago. They couldn't fix it but fitted an artificial heart - it will last a max of 5 yrs. After that .............
You'd think the sons & family would be flocking around to help, wouldn't you? Zilch. She struggles, and talks to me about loneliness and abandonment by others and the world.
People die, friends die. I mourn them and miss them like Hell. It doesn't help them if I lose myself. That's important.
Magistrates & Courts etc. may issue demands, but there are systems to help people in your situation. You matter in this world.
Heck! You matter to us on AB. Stick with it,nailed it, please. :)