i was the exact same, incredibly irritable and unbearably sad and lethargic - actually a little suicidal at times but i don't think teenage hormones and oz mix very well tbf lol. it took about 3 weeks for it to settle and then another 3 when i moved up to .5, honestly what helped me was knowing i had a strong support system that knew what was happening and being patient with myself. though it's just my own personal coping mechanism; i really like having to focus on something else like planning a day out down to every last detail on paper, cleaning my room, redesigning/reorganising something, creating something!!!! also his mental health absolutely has to come first, if he can't push through it or things aren't getting any better - try something new. there is no point being on oz if you're completely miserable