Yeah man they are terrible. It took me months to even feel semi normal after the several year bender I was on! Spending upwards of $300 a day, it was crazy. Looking back on it makes me wish I could do things differently, but that's not how life works! Thanks for taking the time to read my back story!
The physical addiction is real, but the mental addiction is what takes the longest. It takes awhile to get everything firing correctly after going so long supplementing your natural chemicals.
Mind over matter inkha. :)
Honestly though man good on you for smartening up. It takes more courage to do that than to just get high all the time. Hope everything goes good for you in the future man, You're intelligent and persistent.