I'm so sorry to hear about your mom. I remember reading your other posts. I lost my husband to lung cancer in July. It's not an easy time for either of us. However, we have to remember that your mom and my husband are both up in Heaven with God and Jesus and all the angels plus their loved ones who have gone before. Also they are out of any pain or uncomfortableness that they experienced. Eventually, we will be reunited with them. This has helped me get through the hard times. Pray and ask God to help you get through this sad time and he will. I will say a prayer for you also.
PML