When I was in high school and was aspiring to be a shredder like all of the guys on TV at the time, I was playing 2-3 hours a day between getting home from school and when the parents came home from work. I spent a solid 4 years of high school playing like that, and it did pay off.
Once college came around and I realized that my tastes in music were truly awful, and I lost interest in the whole shredding thing. Plus I just didn't have time to practice much in a dorm room with a roommate. Mostly acoustic stuff. Got in good with the football jocks by learning alterna-rock songs from the radio. But I'd still find times when my tail-chasing roommate was out getting some strange to be alone and play just a little louder than I should. 4 years of that really puts a dent in the technique. But by then I was listening to the Dead and Phish and didn't really care about technique.
Then I got a job, bought my LP, but was stuck in an apartment. any guitar player that lives in an apartment building knows what I went through. Just like the dorm room basically. This is when lunch time became my main playing time. Nobody else is around!
Got a house and stuck with the lunch time plan. 30 minutes per day (60 minutes when I could get away with it) and go back to work sweating and happy. I live close enough that it's only a 10 minute commute, 20 minutes round-trip, so with 5 or 10 minutes to shove down some lunch, I still had 20 or 30 minutes to play. And play I did. And fortunately, my tastes in music evolved (or actually exploded with the MP3 era).
Then came the tube amp. So now I play fucking loud

So it's best to play at lunchtime still since nobody is home to complain (here or the neighbors).
OK after the novel, I guess my point is that you'll adapt. Your technique will adapt to what you're able to put into it. There will still be songs that you'll never forget how to play, even if it doesn't come off clean. But so what? Loving your family is just as good as loving your guitar. Find a happy medium. And enjoy it all while you can.