Just make sure you start off with only 1-2 puffs, don’t over do it. Eating also helps get rid of the weed anxiety by the way. And the anxiety from smoking should not last long, this is something that will go away after doing it for 5-7 days.
I usually go to the gym between 6-8pm, I will hit the pen after the gym and then eat dinner around 8:30pm. I will puff it again a couple times after dinner so by the time I go to bed (around 11pm) I can fall asleep easily.
Psychogenic anxiety can be controlled through keeping your mind from drifting (i.e. using meditation, soothing music, deep breathing, counting backwards from 500, etc). Chemical anxiety is when you feel like you’re having a panic attack, heart races, and you usually feel it in the pit of our stomach. For all I know they could be the same thing I’m honestly assuming a lot in separating the two, maybe one is just a form of anxiety that doesn’t manifest itself as strongly in physical traits. I know for me, anxiety in general can be controlled by training your mind and thought process. There is a slew of research out there that has shown that people who routinely relax and stay positive have improved expression of genes that calm down stress reactions, making them more resilient. You can look up hundreds of different techniques.
If your sleep is that bad, I would also recommend Trazadone over Ambien/Prozac as it is classified as a non-narcotic, non-addictive form of sleep aid/reuputake inhibitor. Additionally, make sure you are eating healthy and working out. This is crucial. Lastly, go to sleep early (around 9-10) - this will take out the stress of falling asleep in time for work tomorrow out of the equation and will give you time to relax and not be anxious about what time in the night it is. Do this for at least a week.