Sometimes mother is not a good influence and getting away can be the best thing to do.
It sounds like it would be best not to confide in her, she crushes your passion, that's not good. My mother crushed mine, mercilessly. She destroyed me in so many ways.

If someone's company makes you feel worthless and sad, then they are toxic.
I have found this website a great help, might be worth looking at.
LIGHT'S HOUSE - Support for Adult Children of Toxic Parents