Just my 2 cents here.
Too much time to yourself, and too much thinking about your problems, doesn't help. Easier said than done for your average Aspie. Connecting with your friends helps. Also easier said than done for a lot of Aspies. Going out and having a drink or 2 with friends can help, but getting plastered by yourself in the hope of washing the bad feelings away most likely will not help at all.
I am not sure where you're getting this. I suggested both options of stimulating your mind through the environment you live in, and though group activity in a hobby.
I have 2 brothers in law, unrelated, who both went psychotic after many years of smoking the stuff. It may or may not be due or partly due to the marijuana. I've known other people where it has appeared to fuel some very serious paranoia and negative thinking.
Well like any other medical substance, some restraint is essential. If all you're doing is smoking copious amounts of pot, than nothing good is gonna come out of it. Moderation is key.
With the paranoia it's hard to be certain, it may be accented due to it's currant legalities in some areas.
Sometimes the reason for negative thinking is that for most people THC kinda acts much like a stimulant in that it gets you thinking. Problem is, it doesn't have any bearing in what you're thinking about, and obviously counseling during use for depression would be an intelligent idea. I really don't think that synthetic capsules do the trick though because it's only synthetic THC, which can be seriously detrimental since the naturally combating effects of cannabinoids are not in effect. Personally, I've found myself more drawn towards the indica (higher cannabinoid) strains rather than the Sativa (higher THC) due to the neurological an muscle 'heaviness', so to speak, since it slows down the neurological firing but this is most likely due to tourettes.
Anyway, like any medical substance educating yourself is usually a good idea. Personally, I think talk therapy is most often the best route of action. I think you did not see my post as i intended it. It was supposed to be an idea that wasn't mentioned yet, not my combined thoughts on the subject.
*edit* Also, with your own experiences you had the option of dropping the option as soon as you wanted to. Most other methods require a weening period to get on and off, whereas pot will give you a chance to see if it's for you. You also need to be comfortable with your environment when you're on it, otherwise it just isn't going to help you. A friend is often recommended while you're starting it, but doctors are just to damned ignorant to mention this I would imagine. Usually I mention that pot isn't for everyone, I just forgot it this time since I was up all night.