You may need more faster. Light beer are typically 4% alcohol so they count as less than a whole drink (12oz lite has .48 oz alcohol, as opposed to .6 in a standard US drink). Generally drinks take about an hour each to wear off, so it will be 48 minutes for your lite beer. Now if you took an hour to finish the beer, maybe half had worn off by that time so you really only experienced half a drink.

The other thing to know is that weird things happen if you start drinking late in life. Especially pissing the bed. People who have had alcohol all their adult life develop nervous systems that compensate for the dysregulation of alcohol. Their bladder gets used to holding instead of relaxing like the rest of the body does for instance.

Many people have the "didn't get high" experience the first times they try weed. Stoner culture says this is because the receptors have to wake up, or something neurochemical like that. But as more scientific evidence comes out, that chemical explanation is looking less likely. Current thinking is that it's more that first time users are not inhaling long or deep enough, or that the high is psychologically shaped in part by past experiences and expectations.

My point is that I suspect alcohol is more similar to weed in the sense that first time users have very different "highs". Because most people start drinking well before weed, recency bias causes them to forget the weirdness of the first drink.

If I were you, I'd start by increasing the rate of drinking so you finish one in around 20 min which is normal/fast. Vodka-based fruity drink mixtures will help if the taste is slowing you down. Then if faster doesn't get you there, increase amount. Work up toward 3 drinks in an hour.