At least your mother still speaks to you. From a past post, you seem to have a fairly relaxed relationship, given that she is a hardcore dub.
It is impossible to change someone else. The only attitude you get to be in charge of is your own. It's hard, but best to let it go.
Here's my prescription: Take a relaxing aromatherapy bath, light some candles, put on some calming music, pour yourself a glass of good wine, and enjoy. Just remember not to drown in the bathtub.
Regards,
SandraC