My friend take her son to the gym when she go workout, but her son is 6yo. I would say to ask at your local gym if that will be okey if not try to find someone you will feel okey to leave your daughter for that few hours xx you’re really doing amazing job xx good luck 🙌
I take my 12 week old to mum & baby yoga. I know it's not gym but I know there are mum and baby pilates classes out there, which is harder/more active than yoga
Am not a single mum but just saying how incredible you’re doing, and well done for trying to think of yourself for a few hours of a week, you deserve that. Maybe try and find a cheap baby sitter to walk baby round the park maybe a responsible teenager looking for some pocket money xx