I turned 25 a few days ago so I can't quite relate to the growing career and family yet but I can still physically remember my college running years. What keeps me going is that I know this year is my final year of my athletic prime, and also that the hardest part of running is just getting out the door. As long as I'm out the door by 7am, everything is comparatively icing on the cake. I can still remember what it was like in college having to drag myself out of bed at 6am for 7am workouts. And the feeling is amazing after getting that workout in. I continue to hold myself to that discipline for the mere fact that I was capable of doing it before.
Whether I still have the passion or not is no longer a question for me because, while I'm also chasing PR's, running has helped my mental health tremendously and it is more of a necessity now. Its necessity in my life forces me to organize my sleep, and my nutrition so that I can run to my best ability. Of course, there are days or weeks or months where running must take a backseat to my career but still I maintain consistency and ensure I am at least maintaining fitness until the days come that I'm able to put in more work. I am grateful for every day that I am able to run.
Training used to be very stressful for me in college, because I put so much pressure on myself to get championships and PRs. Now, I feel much less pressure because I know I'm no longer in a rush to squeeze in champs and PRs in 4 years. Nowadays, If the PR's happen, then that's great. All I am merely doing is focusing on the process rather than the goal, and that means every day I'm completely dialed in on my own body during Warmup, workout, cooldown. This philosophy was partly influenced by reading about kipchoge, and his moderate effort training with relentless consistency over an extremely long period of time.