Yeah it sounds like you have a bit of the social awkwardness, that used to happen to me heaps trying to have conversations with people I just met or didn't know very well. Always kind of analysing what I said and stressing that it was stupid and shit, wondering what they think of you etc.
It sounds like you have a pretty reclusive habit to be honest, all my mates are/were massive smokers like me so I was actually getting out a lot and smoking, I had mates who would come up to my work for lunch break for a mix lol.
Sounds like you are having a hellish time sleeping mate, I never bothered with that shit, whiskey and valium for me all the way

. I reckon you should smoke as much as you want in the evenings and before bed through the week. Go out on the weekends and do something, smoke only before you go to bed, while you are out socializing try and stay sober or indulge in some alcohol or other drugs that open you up socially instead of closing you off.
Either that or make friends with some stoners so if you are going to be smoking dope 24/7 it ain't always by yourself. In the end though I think you will find that it isn't a very satisfying social life when you are constantly crammed in bungalows and garages with 10 to 20 other bong rats sucking down bongs religiously. Much better to go out to pubs and clubs and enjoy a drink or some E's, talk shit with some strangers, meet some chicks and all that.
I think you should learn to deal with your job sober, try and find another one if its that boring or just tough that shit out. I am no fucking saint in this regard but if you manage to cut shit like that out I think you will find it affecting you a lot less negatively.
People can talk shit about weed addiction all they want, I have used a shitload of different drugs, even on a daily basis sporadicly but no drug has had a grip on me like marijuana did. I have done a lot of pills, meth, tried h and coke, all sorts of prescription stimulants and downers, shrooms and acid etc. never hooked on any of them, abused some for periods but managed to get my shit in order quick and still continue to use occasionally. Alot of the danger of marijuana addiction is its relative mildness and its ability to take over your life without totally trashing it like a lot of other drugs do. If I wasn't forced off it a few months ago I would be sucking down cones 24/7 to this day.