Can I give you an advice?
Don't.
Of course you should spend quality time with your children and of course you should strive to be best parent that you can, but most (many? some? me and people I know? this ain't a survey) people will go crazy if they're spending all of their free time with their kids.
I strongly believe a well adjusted and happy parents are more important to a kid then having both of them present and engaged with them at all time.
And unless you have to work crazy long hours, it is possible to have kids, be a good parent and still have a meaningful, interesting part of your life that does not directly involve your kids.
Also, letting kids to have some time away from their parents (or at least time when their parents is not actively engaging them) are good for their development.
Feel free to offer advice, mun.
I will ignore it.
I've got 3 kids, the eldest is 4 and I'm / we're surviving just fine.
The eldest doesn't need us as much now, goes over her friends house occasionally, spends the day with her grandparents occasionally, and the middle one is starting to get there as well.
The youngest though, still needs us (well, my wife mostly) a lot. And we're going to devote our time to her at the moment... They don't stay that young for long, so going to make the most of it.