Im really getting worried for my mom

she has always drank/ drunk? but since loosing almost 30 - 40 kg's, her alcohol hits her hard. she drinks every night and its gets really embarrassing as well as annoying.

its causing financial strain as she buys a bottle of vodka nearly every day. as well as strain on my parents relationship as my dad hates her drinking and how she acts when she is drunk.

my dad and I are too scared to even try talk to her about it as she gets very defensive about the topic and likes to make excuses for her drinking.

what's worse is her mom ( my gran) also drank everyday and she died from kidney failure, it was a very emotional time, so I am cross that she is doing it knowing the physical and emotional results it causes.

In general she is very irresponsible ( especially with money ) and not always reliable.
she neglects her day job and takes advantage that she gets to work from home, but instead is running around getting into this whole 'spiritual thing' with crystals and cards and crap, it really irritates me because she is living in another world and ignoring responsibilities of reality .

can anyone please help or give advice or tips?