I found a website full of poems for mothers and sons. This:

People say time is a big healer, but you never get over it; you just learn to cope. Over the years things like a song on the radio, or someone who looks similar to him or the fact that you see his friends growing and getting married and having children, that to me is the hardest to cope with. We miss him every single day and we will for the rest of our lives.

Source: https://www.familyfriendpoems.com/poem/for-the-need-of-you