Just enjoy what you have because if you look close enough you will find that actually you are much more priviliged than you think you are

If you happen to see a patient lying in the bed sleeping/resting, never think or tell him how lucky he is, even if you are extremely weary, tired or exhausted, because he might at any moment be more than happy to exchange his position with you.

If you happen to see someone working endlessly day in and day out, keeping everything else at stake, never think or tell him how lucky he is, even if you are unable to do something, because he might at any moment be more than happy to exchange his position with you.

In reality, you are the one who is lucky.