It’s too much at two weekends a month in my opinion. If you just did one it would be easier to prepare for with your work commitments. I think that’s fairer for all.
Let him do the other options on the other weekend, the kids will have their ‘just Daddy and Us’ time. He will hopefully learn and have fun and will learn to solo parent in his own way.
Forgetting where you left your keys does not mean you are “losing it”
Harry and Meghan ‘royal’ tour of Nigeria.