I had exactly this when my LG started with her childminder in September. I hated thinking of someone else being the one spending time with her and playing with her, giving her cuddles when I had to work and then I was having to pay them for the privilege. It just felt so unfair. However, my LG absolutely LOVES going. The first couple of days were hard. The resentment and the guilt were difficult. There were tears from me. Day three was the worst. But I promise, it gets better. My childminder has become almost part of my family. My baby is getting to socialise and make new little friends. Her development has come on leaps and bounds. She has an amazing relationship with my childminder and it’s not impacted my bond with my daughter at all. The excitement when she sees me at pick up makes every stressful moment at work melt away. It’s absolutely fine to feel like you’re a mess on Monday and it’s to be expected. The nursery will know that too. Just know that it will get easier!
I don’t think there’s a way of changing your natural reaction to this, I’m also a bit of a mess but like you said there’s no option we just have to do it. It will get better for you. As long as baby is okay x
My LO will be starting nursery soon too, I'm trying to concentrate on the positives for him - it's great socialisation and a lot of people have said they've seen a huge improvement in their development. You're absolutely allowed to have a big cry as soon as he's gone in though!!