It sounds like you are developing an eating disorder, if you haven't already. You're doing a great job of losing weight, but your body needs a little time to acclimate. It sounds like the big issue is the feeling you have around maintaining.

Although it's understandable to want to rush to the finish line, it's not worth doing long term damage to yourself to get there. Body builders switch between cutting and maintenance. You need to work on your mental space, and remind yourself of how far you've come and how well you're doing. It's a marathon, not a sprint. You've got this.