Not OP, but I drink quite a bit too. I discovered ZBiotics and it's made a very large difference in my experience with hangovers. I was also starting to feel worse hangovers as I aged (from being practically immune in my late teens / early twenties), but using ZB has taken me back to those levels. They're a YC startup, and the product is a GMO probiotic that produces the enzyme to break down acetaldehyde in your digestive system helping you cope with a much larger amount of alcohol than your body would naturally be able to do.

Important disclosure: I'm an investor in ZB. I use the product at least every other day and have done so for a few years.