I'm in a dark place in my life and idk how to get out😭

I dont even know where to start. I'm pretty sure most of this is just on account of I'm on my period and I havent got my birth control refilled so I'm having really really bad mood swings and I've cried every day this week... but I just dont feel GOOD. I feel like I have zero energy and I'm super light headed and I'm pretty sure I'm dehydrated. I dont have the energy or want to, to even shower much less get out of bed. I'm so unhappy with my body and I'm proud of myself for losing 20 pounds so far but I'm still not as skinny or small as my friends. My boyfriend is in the army so he's 3 hours away from me. We hardly get to text and I have bad anxiety so I'm constantly battling my head on whether he is playing me or not. I have two friends and they are in relationships so they spend their time with their men. Idk. I just feel like I have nobody. I'm so lonely. I dont want to feel this way...