Interesting question
Mostly content, but it depends on the depth of thinking about it.
On the first level, I have a good and comfortable life surrounded by people that love and respect me.
As the levels progress deeper and you start to analyse the lives of your kids and all the things that you could have done better it gets problematic. I can't imagine it being different for anyone.
Deep thinking is not all it is cracked up to be. Live in the moment and do the best you can.