I may not be able to tell u what to eat or what not too eat but I know that spicy food will speed up your metabolism. I don't like it very much but I understand wanting to lose weight so that powers me through for eating it because im the same height as u but a lot heavier but it helps out w my diet and,i hope it helps with yours so good luck!!
In terms of what to stay away from food-wise, I'd stay away from things loaded with carbohydrates. They may taste delicious, but they honestly don't keep you full for very long. Proteins and tons of veggies are the way to go! Also, it's a good idea to stay away from sodas and juices. Drinking lots of water will help keep you hydrated! Along with that, it will also keep you full (since sometimes you tend to feel full when all you need is hydration), as well as help keep your skin looking good!
As for working out, I'd suggest doing exercises that target your core and abs. Yoga will help out too, as it requires you to hold in your stomach muscles, and it will give you a lean and toned physique. As for getting a nice butt, squats will always be your friend. I did a 100 squat a day challenge for two weeks, and it made a huge difference! Once you get accustomed to squats, you can try adding hand weights for a challenge!