Hi, The main issues I have are a lack of emotion (inability to laugh/cry), an inability to form a social/emotional connection with a fellow human being , which perpetuates my minor social anxiety, and a persistent depression (feeling flat and apathetic).
Initially I thought I was becoming schizophrenic, as the above symptoms are typical of the so called negative symptoms associated with schizophrenia, however these symptoms haven't got worse over time, and I have thankfully remained very much in touch with reality.
Anyways, I actually did quit for 5 months, from July 17th 2015 - January 8th 2016. I can definitely say there were small improvements, but nothing major. The first 3 months, there was barely any improvements and I can remember thinking that if I was the same after many years I would commit suicide, however by the 4-5th month, I started to enjoy playing video games again among other stuff.
Unfortunately, I started smoking again (January 8th). Even though I started smoking daily till quite recent, I noticed the persistent positive effects of my previous abstinence (these positives slowly diminished over time).
I kept smoking because I felt like I did more work while i was high. (I've been a university student for the last 3 years, and I just recently graduated with a first-class honours in biomedical science while smoking weed everyday).