I wouldn't change anything.
Yes I probably pushed my older 2 children harder than I should have, but I knew they would never recoup the learning time that they were losing.
My youngest learnt how to count using real life cows and discovered that she definitely does NOT like horses are 1 tried to eat her (a public footpath through their field but the horse only hated her 🤣) but unicorns are still cool.
My middle daughter learned how to swim in a blow up pool (on her 4th birthday) and finally started to talk!
And my son.... we had the most amazing arguments!! He told me how much he hated me because he couldn't go out and play with his friends/have sleepovers/do anything fun, but we very luckily and gratefully don't know anyone who has had Covid (until today when hes been sent home to isolate).
I realised pretty early on that we were in for the long haul, I held it together the best I could, I cried at all 3 of my babies having, in my eyes, a shit birthday because they couldn't do anything and I couldn't really get them what they wanted but they all absolutely loved it. They realised there's more to life that material things.
As a family, we transformed our garden, walked 33 miles in A DAY just playing in the countryside, swam during a HUGE thunderstorm while singing Imagine Dragons and made a million more memories