I've been told grieving is a process. But, we are human, and processes are damn hard and long.
Time does seem to make a difference, not initially, and having other family to support/talk about her may help you, if you are close.
You will have low days/nights, heartbroken times, and happy memories, all in a twisted roller-coaster ride of emotions.
It is hard. I lost my Mum this February (not the virus), wasn't able to go to her funeral as she died abroad. That was so upsetting, but I sat in front of a church with her photo and sang a song we loved.
Still, I know she is with me, in me &will always be part of my life.
Your Mum, will always be with you, her words and her little ways the you may have/will adopt. You don't get used to losing her, you just miss her in a different way. And you will be okay with time...
Peace and love 