Help with weight loss!

Hey everyone! So a little over a year ago i got the nexplanon in my arm and it made me gain 30+ pounds. I finally got it out a couple months ago and i have lost 5-10 pounds (it fluctuates) but i wanna speed up the process. i try to eat healthy but i work in a restaurant for the night shift and i have a huge problem with self control. i just wanna lose fat especially in my belly and arms. any tips on beating cravings, speeding up metabolism, good workouts? (i go on the elliptical a couple days and i go to zumba usually once a week) thanks!! i also am usually very bloated whether i eat or not so any tips for that as well would be great!!!!