reeceshits literally meth dude stop doing it
no it isn't
similar yes, but not the same. Meth is significantly more dangerous due to how fast if crosses the blood-brain barrier delivering a more powerful "high" faster. This also causes meth to be significantly more addictive. Methamphetamine also breaks down differently were the byproducts are neuro-toxic unlike adderall amphetamines. Yeah both are bad for you but Meth is still WAY WAY worse.
Now I have ADHD and have a dextro-amphetamine prescription, after having been on these meds for about a year now. I don't understand the craze for them anymore. It's nice to not be tired as shit anymore, but god is it annoying focusing on the most useless shit constantly. ex. Marveling at the texture on a cubicle wall while having a deadline to deploy new equipment. Shit when I play TF2 while on my meds I feel like I play way more like a bot than when I'm not. Maybe it's different for people who don't have ADHD / don't take it everyday.
actual active doses of meth and and normal amphetamine are actually not that different of experiences (relatively sure I haven't done meth, so just going off what I've read). The biggest differences are in amount and route of ingesting. Smoking gives you a higher peak and addicts typically take something close to 100mg of IR equivalent at a time, both of which will get you addicted to regular amphetamine too. If you're regularly taking equivalent doses of meth/amphetamine, you're only slightly more likely to get more addicted to meth, since it is a bit more euphoric on the whole and makes it easier to form the response.
I take a lot of adderall, fwiw, and I know what you're talking about to some extent. I find it depends heavily on the sort of work you're doing, your motivation, etc etc. At work I mostly program, read articles, or write so its not a big deal if I hyperfocus for 4-8 hours, cause no one really interacts with me anyway. Days that I have to do stuff down on the production floor are rough, though. It gets better as you get more and more used to the actual ride, but its still pretty easy to lose yourself (I wrote a 3 page footnote on the history of the Darwinian individual yesterday :( )