Going back to work and need help!

I go back to work in a few weeks and I cannot seem to be able to get my 3 month old down for a nap without nursing her or holding her. The person who will be watching her won’t be able to do this.

I have tried creating a routine, but the moment she feels it coming, she starts to scream and will not calm down until I nurse her.

I am good about sticking to my guns in the morning but I still end up holding her for her naps and by the afternoon I have lost my will and start to nurse her out of sheer exhaustion.

Any advice or what worked for you would be greatly appreciated. Please help!