How do you save money?

I have $200 going into my savings every 2 weeks but I find myself using it within a couple days this has caused me to already spend $5k out of my savings in the past 6 months. We’ve picked up some expenses such as daycare which is $1,400 a month for 1 toddler, mortgage is less than daycare, we go 50/50 because we don’t make enough to live off just one of our income. Please give me advice on how to do better I feel like a loser mom 😭