The first thing to do is consciousness , because consciousness we are distracted. Second, to accept the truth, because we don't know when we will die. So, we have to take care of each other at the time we were together. We do not have to regret it later. We were born alone and we will die alone. We have to live for ourselves. But I know that losing a loved one just like with any tragedy it's going to take a long time for it to stop hurting.