Herodias
So sorry about the situation with your parents. Then, dealing with a divorce. You have a lot on your plate . Unfortunately, at 70 years of age, your mom isn't going to change. You will have to keep avoiding the FOG. Looks like you have been around the website for awhile. You have probably gone through some of the lessons. It could be helpful to revisit the FOG lessons again.
Here is a link to info. about Fear, Obligation and Guilt (FOG):https://bpdfamily.com/content/emotional-blackmail-fear-obligation-and-guilt-fogWhy don't you do something nice for yourself this week. Treat yourself to something special. Maybe a salon appt., a new outfit, a flowering plant (or cut flowers). It doesn't have to be anything expensive. Maybe a nice long scenic walk at a park or beach or perhaps you can buy some essential oils and have a few nice warm baths. I sometimes draw a nice warm bath with lavender oil and epsom salts. (just add a candle or two, some soothing music, a little mindful meditation).
My elderly parents both passed recently at age 92 (within 6 months of each other). Even in the best of situations, without any mental disorders, it can be a tough situation. My dad didn't want anyone he didn't know to come into their home, so that presented a challenge. "Fallen and I can't get up" becomes a reality at some point, and not just a silly commercial.
I agree with you about the wine. Not a necessity and a bad idea for an elderly person with the start of dementia and diabetes. (especially in view of the history). Any way to use something like Amazon's services to purchase and deliver something they may need (or some similar service). If they live in a rural area, might not be an option.
Has your mom received an official diagnosis of beginning dementia? I guess with a step son who is a doctor, that has likely happened. How much difficulty does she have with memory, at this point?
I can see how annoying it can get when your mom gushes over a helping neighbor. The neighbor shouldn't be helping by buying wine, but a willing neighbor can help in a pinch with other things.
Your step brother has a point, in that if your mom and step dad don't stay active, their health will fail more quickly. They may need some assistance with some things like housekeeping. Are they able to pay someone to maybe come out once a week and assist them with cleaning?
Hang in there. I know it can be a challenge. A 40 minute drive to your parent's house makes it tough on you. Hopefully, your sister will be back from vacation soon. Does step brother live closer to your parents?