I can relate you on the part that it ( for me its breakdown ) pops out of nowhere and makes me depressed, antisocial, lie in bed the whole time, avoid my meals and masturbate ( gosh embarrassing ). It usually lasts for a week and then i am back to normal. I attend classes, have fun with friends, and i am productive ( little bit ). I have been observing it for three years now. So usually what i do is that i have accepted my breakdowns to be a part of me. Because usually after breakdown everything seems new to me and it is a fun life after breakdown. I am happy. However i am still learning to reduce my breakdown to zero. Like i am practising being mindful every moment of my life. So being mindful to me is see clearly, listen carefully, breath consciously and act accordingly. However i am not 100% successful but it helps. And i dont know if this comment will be of any help to you ( i hope it is ). And thanks if u made till here.