About recovery and full healing

Hi community, I’m almost 5 months in my recovery and have to say it’s been a very difficult journey so far
I experienced a lot of withdrawals (especially psychological ones) that made me think I was getting crazy
I was literally living in my own head thinking nothin made sense in life, couldn’t sleep and lost my appetite, bad bad weeks
Anyway, for the last 2 weeks more or less, I started feeling better, hoping I was out of the woods or near my final step of the journey thereabouts (I was not thinking about tragic scenarios or hopeless thoughts, just living my present moment, but not that sense of “enthusiasm” everybody talks about when they are fully healed). In the last two days I started thinkin about sad things and scenarios almost like I was in the first part of my journey, just when I thought I was almost fully healed, sadness and hopeless thoughts arised again in my mind, my question is: How do I know if I’m fully recovered/healed or I’m just in a “calm” phase before the next storm of withdrawals come? Can someone who’s already and surely fully healed answer me? Thank you (I don’t know if it can depend on that but I found myself looking at (not indulgin that much) a photo that popped up on social media and that aroused me but soon stopped looking after some minutes and didn’t come back to that later)