Crazy high tolerance- and I rarely drink!

I’m 19F, about 150 ibs. When I was in Germany (so I wasn’t drinking illegally!), I noticed that it took me a LOT of alcohol to even feel tipsy. There was one point where I drank so much I threw up… but wasn’t even drunk. Just tipsy. Wtf.

Point is, I’ll be going back to Germany soon and I want to have a little more fun. Does anyone here know how to reduce alcohol tolerance/increase effects? Because I don’t want to be damaging my kidneys and liver for nothing. I’d like to drink less and feel more. But how?