Love your parents like there is no tomorrow. Even if they hurt you be the better person and forgive them, talk to them, hug them.
Life can be cruel, years go by fast we age and we die and before you know it they'll be gone.
My mom was fighting an aggressive form of dementia for 5 years, I wish I had more time.Losing a parent this early in life is devastating but I gave her the best life she could have until the end. There's no shame in being emotional while someone close to you is fighting incurable deseases
Hopefully medicine some day advances enough to be able to cure something like that, very tough to lose someone both mentally and physically