YANBU to ask (as per your title)
YABU to think it is boring.
Although, if you've never been to a cricket match and never followed it on TV, then a County match probably wasn't the best place to start.
You should have started with The Hundred, where is is completely set up for people who have not watched cricket before, and where they go to a great effort to explain the rules to people who are there for e the first time. It is also a much shorter match with much more defined and clearer rules and targets. The excitement levels are high, to the extent traditional cricket fans think it is over hyped and "not cricket". It is definitely aimed at kids and introducing non-cricket families to cricket.
Probably a better compromise is the T20. Again, limited time (3 hours for a game usually, including the break), and much clearer what target you are aiming at. More exciting to watch and far fewer 'nuances' to the game than in the longer / red ball format.
That said, I go to watch County cricket sometimes and enjoy it as a 'day out' as a whole, rather than specifically following the miniature of detail. It enables me to sit outside for the day, in the fresh air, spending time with the other people there, chatting, and just relaxing. I get bored sitting in my garden with nothing to do, but enjoy sitting at the ground with the cricket in front of me. I sometimes take my knitting or a crossword to do at the same time which is perfectly manageable.
I don't understand all the terms or all the nuances of red ball cricket but do love listening to Test Match Special on the radio, as it takes me back to my childhood as a long term 'sound of Summer'.