I have been where you are. Between 2002 and 2006 I lost 6 people: my only aunt, my mother, my godmother, my son-in-law (left my daughter, not dead); my husband and my mother-in-law. It took me 10 years to recover from all of it (including the 10 years till 2006 in which I nursed my DH and my mom). Grief is okay; it’s normal. It’s not fun, but it needs doing. It will continue indefinitely. The best thing, though, is that it will rear its head less often and last for shorter periods of time. Be gentle with yourself for a good year after the death of a Very Important Loved One (like your mom). It’s okay. Hugs from Alberta.