Umm Salama reported Allah’s Messenger (ﷺ) as saying:
Whenever you visit the sick or the dead, supplicate for good because angels say” Amen” to whatever you say. She added: When Abu Salama died, I went to the Messenger of Allah (ﷺ) and said: Messenger of Allah, Abu Salama has died. He told me to recite:” O Allah! forgive me and him (Abu Salama) and give me a better substitute than he.” So I said (this), and Allah gave me in exchange Muhammad, who is better for me than him (Abu Salama).
[sahih Muslim Book 11 Hadith 7]
Never forget that God entrusts the hardest tasks with his greatest servants.
Things you should never regret about:
Love & kindness.
They are never wasted, they will come back to you, One day!