Unless smoked daily, in very high volume, over a very long period of time, cannabis is not physically addictive.
However when smoked regularly, even in small amounts, cannabis can be psychologically addictive due to the principles of conditioning, state-specific memory and amotivational syndrome.
cannabis is only psychologically addictive, kinda like because it feels good, so the hard part in quitting is u missing that feeling and not ur body. In that case it probably means ur not focusing in ur life enough to be thinking about 草 if ur trying to quit, 或者 ur not doing something that makes u feel good without needing to hit the bong 或者 smoke da spliff xP