Did you try cbd then? One of my coworker swear by it. One or two drop under the the tongue and he goes to sleep like a baby.
Edit: nvm i just saw you were already on it. You might try to slow down on the thc and give cdb a bigger chance since too much thc might give you more anxiety.
https://www.canakit.com/raspberry-pi-3-model-b.html
Here ya go! You don’t need the last edition pi to use retro arch, enjoy.