Take better care of my pets

My hamster died on Saturday. I feel really guilty because I didn’t give her the attention and care that she deserved.
My dog is 14 years old and I don’t know how much time I have left with him. He doesn’t ask for much in return for being my best friend since before I can remember, but he deserves more than I give him. When he dies I want to be sure that he was as happy as he could have possibly been.