Hi Ijin Kaion!
I understand what are you talking about, tried few times to write stoned but it's hard to write and think at the same time. So many thoughts come and simply you can't type fast enough, or keep one thought long enough to create some kind of good story of it.
I remember my first speed experience (an the last one). While being high i forced myself to remember that feeling best i can so i could reproduce it later. And it works. It was such a great ego trip, i was king of the world, walking down the beach in late mourning hours with sunglasses on. Only happiness was in my head, for the first time in my life i was happy and nothing else. No problems or worries, just me living in the presence as much as i could. Still i become a bit happier when i think about it so i use that experience as an anchor to my positive emotions.
You say that it is easier to achieve some state by smoking ganja. Yes it is. Also i could probably achieve the same if i take a line of speed now. But it's not a solution. I figured out that feeling like that is possible, i can do it without drugs. (except for a few times
) You have it inside, drugs helped you to find out what is it. Now it's on you to try to achieve that in reality and make some value for yourself or for others.