Quite frankly I don't blame you -I had "surprise "parties for both my 50th and 60th and they were awful!
For my 50th, my son arranged for me to go and have a facial, pedicure and manicure. I was an hour late going home as the polish on my toes wouldn't dry - it was winter so not able to wear sandals to walk home - got in the house and my closest families were there. We had a glass of fizz, I blew out the candles and they went home ! (School night so children had to be up in the morning) . Ended up sending them all out with boxes of food and cake!
My 60th, son again organised a party - this time in the village hall. Just close family again and we all sat round in a circle, no heating on so we all wore our coats. As soon as the food was eaten, thy all left!
Take others advice - book a few days away for yourself and DH and miss it all - or be radical and tell them that if they organise anything beyond a family meal, you won't be there!