Lost my father Dec. of 2002 after a long bout of heart desease, and though it does get easier as time passes, not a day goes by where i don't think of him. I continue to honor my father today as i did back before he passed away. Keep your head up and be proud for what you did for him during his final months. I never felt sorry and so shouldn't you. Be proud that you had a father in your life when alot of cats I now never had one who was there. My condolences, and God Bless you and your family.