Please help people who know marijuana well?

Please help i am going through severe marijuana withdrawal such as fatigue all day and the worst anxiety, i am almost done with it (day 8 clean) but today i was with kids that were smoking about .4g of weed(with a bong). we were in a room with the fan on. i felt a bit out of it, could this of been mental? did i possibly delay my withdrawal or even restart it? i am so angry that i feel out of it, i was doing so well!