I gave up my nice car and doing track days. Many of my time consuming hobbies that involved going somewhere have been greatly reduced or eliminated. I tried replacing them with smaller hobbies at home while I can watch the kid - like small batch beer brewing or learning bass guitar.
Career-wise I have accepted that I will not be promoted and will remain an average midlevel dev for the foreseeable future, mostly due to the cultural expectation that you have to put in more hours to be higher level (and some past decisions still dragging me down). I also acknowledge that I can't afford to changes jobs, eventhough I hate my current job. I need the money to support my family.
The responsibilities that come with marriage and kids is vastly understated - it can be absolutely crushing. If it weren't for these responsibilities, I would have changed jobs, been a senior dev or tech lead, made and saved more money, and likely would have been able to move to a lower cost area to retire early.