Hi there! I'm a woman in her late 20s, 30 KG overweight. Naturally I hold the most fat in my belly & hip in comparison to my upper body. To give an estimate my hip is 13 inch bigger than the measurements of my high waist. 
Having bigger hips made me accustomed to them and fall in love with it. I am currently on a caloric deficit, doing cardio on treadmill at speed 5, 30 mins 5 times a week & following a generic workout split the gym trainer gave me. Since I'm new to this I still am figuring things out.

Problem is, the gym trainer is a male who doesn't work much with women and focuses on weight loss a lot. I am worried if I lose the weight I'll also lose the proportion of my bigger hip. 

I am curious for everyone else like me, how did it affect you? And, if I want to learn to grow my glutes back after I lose the excess weight, how should I focus on training and eating? Do I have to eat at a caloric surplus or maintenance? 

I get very anxious about this, and I really want that fit proportionate look, would love your input 🙏🙏