It is ever okay to give-up on living and go home to Heaven?

In this episode, Dr. Betters answers the question, "I am 75 years old, and my health has slowly been deteriorating over the past 5 years. Recently, my health has gotten much worse, and it is unlikely I will ever have a decent quality of life again. I am in constant pain and I need assistance to do even the simplest things. When is it okay to “give up” and go home? I know suicide is wrong, but is it wrong to just stop fighting to live when you’ve lived a full life?"