I came to the UK from a different country, when the kids were 3 and 5, and found it hard to believe how competitive parenting is in the UK!
Everyone feels they have to cook from scratch, entertain their kids, read with them all the time, do educational stuff, make sure they are top set... it is exhausting!
I have become almost completely British over the years, but the parenting style is one thing I have held onto: benign neglect 
I would take them to the park a lot, with a newspaper (not going down the slide with them!), lots of outdoor stuff. I did not even read with my kids (I read them stories, but never made them read until 6/7). Yes, it was sometimes hard as kids are hard work, but I never felt compelled to do all this stuff with them, or to be an amazing mum (I am not, anyway. I strive to be a "good enough mum") or to have kids who are top set in their reader group (triangles, apples, whatever it is called).
Mums in the UK put way too much pressure on themselves.
Let them get bored, don't go to softplay if you hate it, take them outside a lot, let them get bored again, give them a sandwich and an apple if you don't fancy all this "cooking from scratch", if they squabble, let them squabble and they'll learn to find their own solutions, ....and find time to do stuff for yourself too!
There you are, a lot of advice you did not ask for from a smug foreigner 
Take a step back and breathe