Hangover relief

I’m 22 and used to never get hungover and in the last year I always get extremely hungover from drinking. I’ve heard milk thistle is supposed to help liver detox so I started taking that but I haven’t been drinking while taking it. What else can I take supplements, etc. To avoid horrible hangovers? Obviously drink a lot of water and maybe eating a meal before bed to try and sober up? Going to a two day festival and want to not feel like shit the second day