I got merry (and on occasions drunk!) on social occasions from teenage to around 60. I’m not that keen on alcohol since reaching my late 60s, apart from one occasion a couple of years ago. My DiL and I had a girly night in. I was getting merry on Prosecco. Then she plied me with shots. The next thing I know, my partner had to come and scrape my unconscious body off the floor. Since then not a dribble of alcohol has touched my lips!
Forgetting where you left your keys does not mean you are “losing it”