Planning on smoking again tonight for the first time in 5 years... but the only problem is the weed is 27.5% THC... any advice?

Ok so back in high school I'd smoke all the time, enjoying it most of the time but occasionally facing bad paranoid. Lately I've been wanting to smoke again, and a friend gave me a nug of 27.5% indica dominant flower. I asked chat GPT and it suggested breaking off a piece "the size of a grain of rice" and smoking that out of a pipe and seeing how it goes. I play to mix it with some beers and go for a late night walk. Any advice? I'm just worried because 27.5% seems like an extremely high THC level.