@Becca6510 are you judging your weight by the scales or the view of yourself in the mirror?
I asked because one approach may be to tone your stomach muscles rather than lose weight.
A good gym will be willing to work with you to develop a training program to focus on the areas you want to.
And by doing more resistance type training (weights, ab-work, etc.) you will not need to worry about losing weight on other parts of your body. I find it is also great for my posture.
As muscle weighs more than fat, you may see the scales go up a bit whilst your clothes become a little loose.
If you do a longer session of resistance training, you may find your BG will gincrease a bit. Don't worry about this - once you get your pump you can adjust your basal rates to manage this.
One resistance training activity I love is climbing. It builds strength (without becoming overly muscly), it is easier with a stronger core so I am motivated to do the ab-work at the gym, it provides a mental as well as physical workout (making it easier for me to switch off from other things) and, as you can't do it alone, it is social ... without being competitive.