i turn 18 in 5 days and i can legally drink. need some help with what i should drink

im planning on buying beer from a nearby convenience store. i don’t wanna spend too much so these are the options I’m considering so far

– B.S Lager beer, 8% alc, 490ml

– jinro soju 13% alc, 360ml

I know beer probably isn’t gonna taste that spectacular but I’m planning on getting slightly drunk, or tipsy or whatever. i absolutely cannot get really drunk and come home smelling like alcohol cuz my parents will flip. but I’ve been waiting for 4 years lol, I’m gonna drink one way or another. i just have to be careful. . I’m not gonna drink at home, probably at some park or bench idk. somewhere that’s not too public.

I’m considering the beer more than the soju but idk if the beer will have any effect. and I’m also worried the soju might be too much. for reference I’m 55kg and 160cm (121lbs and 5’3 I think)

help a fella out guys, what should I do