Recently diagnosed aged 37 however parent dismissed my diagnosis

I have very recently being diagnosed autistic and adhd aged 37 I have waited over 2 years for my assessment and before this took a year to even speak to my doctor about it as I find it hard to open up and talk about myself. I felt a sense of relief when I was diagnosed as I finally realised I'm not broken or a failure my brain just works differently. I told my mum which I was worried about and she just said nah I would ask for a second opinion you just struggled more when you moved out as you had more responsibilities and how could I have a job and kids if I was autistic and then she just ignored my messages all night. I just don't know how to feel about it I feel is it my fault that I didn't open up more or speak more about my difficulties or should I have told her differently or beforehand. I just feel a bit lost with it all