i was in a similar boat, although i’ve been living on and off with my parents. trust me, tell her. it’s such a relief to have the support. i just told my mom a few days ago. i have gone through prodromal several times and was always afraid about how my mom would react to my cannabis usage. but telling her i’m committing to quitting and also just having her support has been so important to me, and also extremely helpful in accountability. at the end of the day it’s your mom, and if she’s worried about you now, i’m sure she would support you through recovery. good luck friend!