I'm smoking for 12 years, a lot... these days I'm cutting back more though... I always tired to demonize it when something wasn't going right in life but I always find out that's bullshit, it's other things usually, more serious things, which are harder to fix and take more time, so people just blame the pot... but if I think back when I became dirty rich of something I always smoked my ass off... those times I smoked so much I spent whole days in complete meditative state of mind...
you can do big magic with pot, just get that money first to always have it xD surely there are lots of benefits of quitting after smoking for years, your brain works faster, etc... withdrawal can be very unpleasant, I'm usually very aggressive and depressed but only at the first day of it... however never any fucking synthetic's withdrawal made me so aggressive than the first day of pot's withdrawal do I swear... I'm quitting from time to time, for few days, for a week but you can't get used to that shit feeling ever...