Advice on non-alcoholic beer and alcohol flushing.

Where i live, the legal drinking age is 18. Im a new drinker and though of trying different alcohols. i tried wine and although i hated it alone, i really liked it when it was diluted in coke or some other drink. I tried whisky and although i don’t hate it, i dont really like it either. now i want to try some beer to see if i’ll like. Maybe because im new to drinking but every few small sips i’ve taken, i’ve noticed my cheeks get slightly warm and red. Maybe i haven’t built a tolerance to it, idk. My dad drinks and my RARELY used to take a few sips of beer so I don’t think its genetic. I thought maybe trying alcohol-free beer a chance as an introduction to see how i feel and create a pallet of what i like. Where i live there are quite a few alcoholic beers from Heineken 0, Carlton 0. I’ve also heard though it tastes like shit.