It is kinda weird, because you feel so much more tired all the time. Yet at the same time you have so much more motivation to do _everything_. It is like I feel 50% more tired, yet 200% more engaged with everything I do. It really makes your life a lot more meaningful.
Before I would waste so much time engaging on video games / internet-browsing / TV-youtube / etc and just not enjoying the time I spent. It felt very meaningless, like why even bother working? I have (had) savings to go take several years of sabbatical if I wanted.
When I actually boot up a video game today I actually enjoy it. And that is all on top of normal stuff you hear about having kids.
Thanks. I have a friend who says the same as you.