I'm kind of freaking out

so, I think I just experienced the literal meaning of triggered. I struggled with depression pretty bad for around 2 years in high school. I never went to my parents about it because I didn't think they would be supportive. Well tonight my mom went on a rant about how kids who kill themselves are just playing the victim card and are blaming everyone else for their problems and if they had been taught better by their parents then they wouldnt be dead. I am so angry and sad that she thinks this way and now just thanking God I didn't come to her when I was depressed because she would've made things 1000% worse if she told me that. Well now I feel very anxious and I just wanna cry, like I'm on the edge of a panic attack. I haven't felt this way in a while but her talking about this just made me think back to when I was struggling and now I'm just upset and working myself up. How can I calm myself down? I really just wanna sob.