How do I deal with grief from year(s) ago?

I've lost my grandparents in 2020 and 2023, and my uncle in 2022. My grandmother and uncle died from lung fibrosis, my grandfather from a multitude of health issues and covid complications.

I am so freaking tired of grief, I am tired of thinking about it, I am tired of the pain, the suffering, the anger and I dont know how to deal with it anymore.

Any advice would be great.