Hi Op,
Am I right you’re in self-catering?
If at home you have nanny, cleaner, Deliveroo etc you can’t go to a self catering holiday and expect to relax (unless domesticity is your way to unwind?!).
You also have to accept that holidays with your children are childcare in a different setting - and without your support system at home.
I would recommend either a hotel geared to children with activities, crèche, babysitting. You don’t even have to use the childcare but at least you aren’t cooking and cleaning up.
Or, if your DH prefers seclusion then “self-catering” place which comes with the option of food being cooked for you and cleaners coming in. It doesn’t have to be chef cooked dinners every night there are places that stock the fridge with lasagnes etc for you.
Is August usually quieter on the work front? Could you do your holidays then?
I think you need to up your budget for family holidays too.
It sounds like you need to do a general household budget in tandem with a review of how much you are both working.
If your husband was happier in his job would he be more supportive of your job?
You also mentioned that your MIL was a SAHM. Would your husband secretly or not so secretly prefer that you were one too? I think you need to have a big sit down and discuss everything in terms of budget, career aspirations, practicality, family harmony. I think it’s better to have it out with him and discuss why he thinks that / why you don’t want that / review the previous discussion you had that him sniping at you day to day.
There might be ways to work smarter not longer for example “I need 1 hour on Saturday morning / on holiday mornings and half an hour in the evening to check and respond to urgent emails please could you have the children then or can we arrange for someone to have the children then so that I can focus on that? Then I can be fully present for the rest of the day.”
Also, if you are concerned about finances then separating and running two households isn’t going to help.
I think you and DH need an “offsite” without the children and have a big reconnect and review how everything is going and how you can reach your family goals. It’s very hard when you’re in the thick of family life to make strategic decisions .