What type of care would best suit my Mom?

Mom suffers with poor short term memory, depression, and anxiety (that causes sky-high blood pressure (200's/100's). She also has a fainting disorder related to low blood pressure. Due to the extreme fluctuations, it is not safe for her to take blood pressure medication. Secondary to her fainting episodes, though infrequent, she is unable to drive or live by herself (because of safety reasons). She has 3 children that work full-time jobs and have children rendering them unable to be with her 24/7. She needs reminders to take medication, assist to prepare meals, someone to be there when/if she faints (and knowledge to be able to help her), and to drive her short distances. She thrives in social situations so I would like to see her go on field trips and socialize with people. Unfortunately, she is very negative about her future, cries easily, gives-up easily when it comes to doing things to help herself(i.e. memory games), micromanages her grandchildren instead of loving on them, and is more frugal than anyone else I know. She has been living with family for the last year. She really wants to live by herself at her house but, it is not safe for her to do so. So... trying to figure out what care would best suit her. Thanks, in advance, for any suggestions.