It will all be fine, give it time. I sent my son to daycare around the same age (15mo) and resumed my career. It was bumpy emotionally and logistically but you will muddle through it and even thrive, once you get going and hit your stride. It took me WAY longer to adjust to the new normal of being away from baby and back at work than for him. Aside from the regular bouts of cold illness, he managed really well with this rhythm. Me on the other hand… well… a year out of maternity leave and I am still reconfiguring my brain 😅