Well thats not me atm (or any time soon LOL) But it is DH.

Here are my person looking in suggestions.

ME time - Its important but as always you will find it gets put to the bottom of the list. Try taking a book/kintting with you to work & using your lunch break as your ME time.
Also the drive/trip home. Loud music playing is always my thing when I am in the car

Family time - Set aside an hour in the evenings where you all sit & do something. We do this. 7pm to 8 pm is Family time (we even call it that). TV is off, raido on & we sit together & play board games, draw with the kids, go for a walk etc. We allow this time to also include a bath for the kids if needed. Dinner sometimes overlaps into this time also as DH's shifts sometimes means he gets home just before 7. But regardless TV is off etc & we all sit together to eat, talk etc.

Kid time - DH reads to the kids each night for Bed (currently reading the BFG). Bed time is his domain with the 3 older kids. Weekends are also his time to spend time with them. He is a good dad & spends as much time as he can with them when he is home.

Study time - DH is also doing a Full time UNI degree via correspondance. He is lucky in that he can do *some* study at work (well has been able to in the past, this year its harder to fit it in) but he uses about an hour after the children go to bed to study. He will also let me know if there is something he *needs* to do. So I know he isn't just fluffy about on the net & I can keep the kids out of his hair. DOes Jaz still have a day sleep? You could use this time on the weekends for study also?

Couple time - Ahhh tricky this one. Be inventive. Unfortantly DH & I don't get alot of "couple" time. Co sleeping with Iain & a reluctant sleeper with Evan means he is usually tired or asleep already by the time ALL the kids are asleep. We haven't been out ALONE on a "Date" for over 7 years. But you know what.. We are happily Married. we have been together for 14 years this year so we must be doing something right. Sure we have our rough patches but nothing major.
We are both stronge belivers that a couple with kids, is exactly that, a couple with kids. Sure "couple" time is important but I don't belive it is an esential part of the day in making a relationship work KWIM.

On the Midnight bedtime. Well Yes I do but I don't go to work each day (well not outside the home ) BUT I think you should give yourself a bedtime. When I was still working outside the home I made sure come 11pm I was in bed. I'm lucky that I do ok with late nights. Its early starts that kill me LOL.