Im 5'9 with 117 pounds, wanting to gain weight/muscle advice?

Hey guys so im a 17 year old guy, and i have been trying my best to work out as hard as i can go enlist in the Marine Corps as fit as i can possibly be. But for that height, i need my goal to be around 130-150 pounds. I also have super mass gainer (1900 calories per serving) so i can drink two servings per day and gain one pound, but my parents rarely ever cooks for me,and if they do the meals turn out really bad, so the source of food is very rare from them.

Also i am currently in planet fitness, so i really need to get a good idea on what to use to grow arm/upper body/lower body strength.

DEMORRETT2017-07-10T16:49:27Z

For many people artificial sweeteners can be a sensitivity that can cause slower weight loss or stop weight loss altogether. Everyone is different and may have different sensitivities. If you encounter a stall or plateau in weight loss, evaluate how much artificial sweetener you are consuming, and try reducing.

moeller2017-07-10T13:17:31Z

For many people artificial sweeteners can be a sensitivity that can cause slower weight loss or stop weight loss altogether. Everyone is different and may have different sensitivities. If you encounter a stall or plateau in weight loss, evaluate how much artificial sweetener you are consuming, and try reducing.

882017-04-08T11:02:02Z

With an F average atleast you can't go down.