work and family life

For those of you in full time work and have children how do you manage it?.
This is my first full time job since having a child. I did work part time and volunteer work up until the start of this year. I now work 40hours plus Monday to Thursday 7am:5.30. (With half an hour travel time each way)
My child's in bed when I leave and his bedtime is an hour after I get home.
My boy is 4 and apart from the last 2 years he's been in school 3 days a week he's been by my side constantly. He's practically my best friend / sidekick. 
Now since working these hours I can't do the school runs or the day to day usual activities with him. Instead his dad has taken over my role and I feel a little pushed out, it's great that they are having more time together but I'm used to being there. (He also works full time but different shifts every couple days) 
I do try my best to make up for lost time on my days off but guess I just miss it 💔