I have a question about what to ask for on a street level.

ok, so I am almost 50 and have battled anxiety for a long time. I used to smoke way back in college and it offered some relief. I told a friend that I wanted to try it again to see if it would help. A few days later he showed up with some real skunky Christmas tree stuff. I proceeded to take one good hit and it didn't sit too well. I got really anxious and almost went into a panic attack. From what I gather, the THC was through the roof and what I need instead is something with a higher concentration of another chemical in trees but I don't know what it is (someone told me one time but I forgot the name) and further what to ask my friend to ask around for. Any suggestions??
Also, while I am on the subject would hash be something that I should look into? I did that once or twice in college and remember it was a pretty nice relaxing high.

Thanks for any input!