I'm too old to start doing jello shots now

I admit I have never been able to handle my liquor very well.  In my younger single days my friends used to love warning my dates what a "cheap" date I would be because one or two good drinks and I am toast.  Now living at my sister's house nobody drinks here.  My father quit before I was born and according to the stories I am lucky to not have any memories of those days like her and my mother do.  If I buy an occasional corona to add to the shrimp and seafood boil when we cook seafood my son goes into full fledged detective mode making sure nobody drinks any.  So last night I went to a little get together at a friends house.  It was a girls party selling adult "toys" and such.  She and I share similar husband issues so we understand how important time away from the hubby is good.  So after the party was over and her family returned to the house I was about to leave when they asked me to stay and hang out,it was still pretty early.  Well even though she has a pretty good selection of adult beverages for this party it was just lemonade and tea and appetizers of course.  But since she was throwing a cookout today she had premade the jello shots and had them tucked away in the refridgerator.  After just the slightest of peer pressure( I am totally weak I admit it) I swallowed one. ONE LITTLE shot.  My first jello shot actually.  Approximately 3 minutes later I started to break out in a sweat and was feeling a little light headed.  REALLY?!  One freakin shot and I am buzzed.  Her and her husband thought it was a hoot I was such a lightweight I was a little embarrassed.  I refused a second thinking no way I could drive home in that condition.  All in all I had a very good time and no I did not drive home until a few hours later but it hit me this morning when I woke up feeling 20 years older than I am.  What happened to Saturday nights running all over town.  Going anywhere doing anything.  Staying up till 6 am then going to work at 11 am.  Then still going out when you leave work.  Do I really miss those days?  Was it all really that much fun?  I think as we get older we forget any of the negative feelings associated with an event and tend to glamorize it somewhat.  Yes I was in better shape and didn't have all these aches and pains and had my freedom.  And could blow most of my paycheck at the mall because there was no cell phone,internet,50 dollars to fill my car kind of bills.  But I do remember waiting by a phone for some guy to call when they usually don't.  Looking at couples thinking I wish I had that.  Going to bed alone some nights.  So the good old days might not have been THAT good.  They weren't bad though.  Now when I sneak a day in with just me and my guys I am always aware of how special that time is.  Not sure if given the choice of being twenty again I would take that.  For the record that jello shot,i found out later, was about 4 oz. of a couple of kinds of vodka.  And I hadn't eaten.  And...nah can't come up with any other excuses.