Meth is?
I dunno, that seems dependent on the individual. Out of the three (opioids, cocaine and meth), I find meth to be the least psychologically addictive of the bunch.
That said I obtained a small amount of meth recently (3.7g) and used it all in about 4 weeks, and almost all of it taken orally (which actually seems like the most enjoyable way to use it, though it takes on MDMA-like quality). In fact I used it all in less than 4 weeks, since 6 of those days it was locked up in my time lock safe.
Glad that it's gone. I don't think I'll ever buy meth again after this. I got a shitload of work done, though eventually I become less and less productive and increasingly paranoid and scattered. It's quite unhealthy to be eating a few hundred milligrams of meth for days consecutively, I felt pretty beat up after (still feel like I'm recovering a bit). Even though I'm not a big meth fan I've got very strong addictive tendencies. Still, I "disappeared" that meth faster than I anticipated. At the end i was consuming it pretty much just to get rid of it. For some reason, this batch seemed to have a more abrupt comedown, even orally. Left me feeling sadder than the last batch me (sad between doses). But I've never liked meth much, and this new breed of cartel meth sucks, especially when smoked.