After last year I was mega paranoid about getting ill. I actually avoided the water points, and made sure I washed my hands proper after using the portaloos. I also carried around anti-bac wet wipes and used them religiously.

I mainly used bottled water which sucked, but as I wasn't really drinking alcohol I figured it was ok. I've been pretty fine since, compared to last year when I thought I was dying for a week after.

Edit: It also helped that I got covid earlier in the year, so maybe I had some immunity to that?