Death is a very certain aspect of life, but it’s not easy to accept it.
I can totally understand. I am sorry for your loss but it’s a part of life it doesn’t control your entire life.
Try to cherish and have a good life.
Focus on spending quality time with everyone you love.
Yes focus on the present. This is your time buddy, embrace it. Live your life happily, and be grateful that you get to live your life.