same age, less children both 8 out of the house for 10 hours a day with work and travel and feel the same, like another poster my dh is away but only Mon to Fri, I am knackered by the weekend, I do takeaway on Thursday and no washing up on from Wednesday night (I lie this is the plan, i do a bit) just soak the worst, it is Dh welcome home :) he doesn't grumble as all week he is living it large, playing badminton, tennis, gym, pictures, down the pub, living with 2 other men who are away from partners as well.
I run the gauntlet of it all, from Ds getting banned from after school for a month, the banning was so traumatic for me I now can't remember why he was banned, just the nightmare of trying to find childcare with no family to help out and juggling work, taking leave to cover it.
but my Dh could see how hard this was for me and came up with the genius idea at half term he would take them up to where he lives in the week and putting them into out of school care there for half term, they loved the out of school and being with dad, dad enjoyed having them as he misses them so much when he is at work, it was so successful they are going to do it in the summer holidays, this time I will plan a bit more, I only went out 1 night to see a sick friend as I really like the OP didn't know what to do with myself any more, I went though this before when my dad died after caring for him (before Dt's) so I know it is possible to regain your life just takes some time.
sending a bit of a nethuns hug, but you are not alone, talk to Dh, men are in the main quite caring they just don't always see or know what we need, as mums are not always very good at letting our "coping face" down and then tend to explode when it all gets to much, to partners confusion, me and DH are both bad at this, but after years realise it, so make allowances, and compromises for each other.