Why do my autistic meltdowns make me feel so guilty (and make my depression worse afterwards)

I had an autistic meltdown today about spilling some boba drink I had gotten. my mom took care of me ,but after I finished the meltdown I felt so guilty and now 4 hours later my anxiety and depressiveness feels way worse. I know the guilt is because my mother told my grandparents (to keep them updated) but I don't know if the depression is a trauma response or if it's just meltdown aftermath or of I'm just overthinking