What's the most difficult decision I've ever had to make?

The most difficult decision I have ever made was to go to my soccer tournament and not let my team down or go visit my sick grandpa. Well I picked to go to the soccer tournament and once we got to it I realized that I had made the wrong decision. My dad and I went to the tournament while my mom and brother went to visit my grandpa. My mom called us to let us know they got there and they were just sitting next to my grandpas bed, where he was not speaking, but breathing. Then not even 10 minutes later my mom called us back and said that my grandpa had just passed away. I knew I should have gone to see my grandpa one last time since it seems that he said alive until my mother got there and my brother got to talk to him one last time, but since I made the wrong decision i wasn't able to. I regret it all this time because i should have just let my team down to be with my family, when in the end I let my family and team down.