I’m 27 and had a melt down just a couple months ago. It can be something like me curling up in a ball or me yelling and throwing things and k rocking things over in a public resurant. Very embarrassing. Its annannoying when people think its bipolar. I just get set off easily sometimes. What helps is learning your triggers and either avoiding them or preparing for them. Also the right med regime and some therapy. I did pre Dbt therapy which helped. I ha e a good support system. Also watch your hormone levels. Our hormones effect how well our meds work and our stress levels. I take birth control for my stress specifically. Hope some of this helps.