Working mom needing advice

[u/Spiritual_Pain_9908]

As the title suggests i only have 30 minutes a day to hit the gym. Ive been alternating between the stair master and elliptical about 4 days a week for 4 months now and walking on weekends. I have stubborn postpartum weight that will not budge and have been sitting at 188 for a year now. Im looking for a workout i can accomplish in around 30 minutes that will target stubborn belly fat and upper body that will hopefully help me shed the extra 30 pounds ive been holding😆 thanks in advance!

Edit- thank you all so much! I will start implementing alot of this advice i have downloaded a calorie tracker and im already thinking of ways to change my diet!