fitness “noob” here

hi everyone! idk anything really about working out and i could definitely use some guidance. i want to lose my belly fat and gain mass in my glutes. recently i’ve started putting on a lot of weight and its made me heavily insecure. i’m 19, 5’11 and weigh about 162 pounds. what exercises do y’all recommend? and maybe some food/snacks to help with sugar cravings? i’m a terrible snacker and i know thats not healthy. i want my body back in shape! also are protein shakes beneficial before workouts? or after? idk how that works.. thank y’all! 🙏🏼