Couple Diet questions.

Logand57

This is my first time posting so hi everyone. I hit my weight loss goal and I'm at 170 right now. I hit a brick wall and I need some help. I feel like I am constantly tired and I realized I was only eating 1600 calories a day because I was still cutting. If I bump up my calories will I see that fatigue go away? I'm taking Multi Vitamins and fish oil already. I joined the Air Force and I leave October 30th so I still have a couple months left. Running has started to bore me and I've pretty much stopped it. I'm going to start Insanity for my cardio and do calisthenics since all the PT tests revolve around them. Also, will insanity help build muscle too? Just a few questions that I had, Thank you.