Used to really love it and my life from about the middle of my 14th year to when my first kid was on the way at age 19 is a constant haze, I barely remember a thing because I spent the entire time stoned at least, but usually non-sober through more than one drug both/either legal or illegal.
Now I find I don't really enjoy it when smoked, since i quit smoking a few years ago I used to have the odd one now and again but always regretted it, and now it's just the smoking experience that I don't like. I can still enjoy weed as long as I take it in some other form than smoking, like eating, say.
I don't think it does me any good though. In the long run I mean. Just makes me not give a shit about anything, which when I'm really stressed and things are at fever pitch I guess can be useful, but tends to make matters worse really because then I just dont do anything about my problems, and they're then still there and even worse when I run out of pot.
I dunno... as I've got older and more confident in myself generally I've found less motive or need for drugs or alcohol. For a long time now the only time I've really used/abused is when I just really can't sleep cos of general hyperactivity or thinking too much and I sometimes sip at the sherry or port of an evening to make myself ready for bed at a reasonable time. That's only occasional though.
At my brother's the other day I had a bifta for the first time in years and it just gave me a headache and in the morning I wished I hadn't done it. I felt fuzzy headed and 'down' for 2 days.