Reply to 2hr/day care?

You mentioned your gym has childcare. Take two weeks and focus on that. Drop her off quickly (dragging it out will only make separation worse) and wait until they need you. The goal is to extend the amount of time she's there before you go get her. It'll be boring for you but once she gets comfortable, she'll get the social interaction you're wanting and you'll get to work out again without worrying.