Thanks for the replies Scolova & Geralt.
I was wondering if the potency had gone up since the 70's - 80's. I also have seen in researching this, that there are two different strains, sativa and Indica, which is less anxiety producing I do not know, as I have seen people say one is and then the other is. Who knows, I'f I get the nerve up to try it again, I will definitely use very very little.