FIANCE JUST LEFT FOR BASIC TRAINING. I DONT KNOW WHAT TO DO!?

My boyfriend and fiance of 2 years is leaving for fort jackson at 9am tomorrow morning. ever since we met we have been glued to each other. We are so crazy in love. We also have a son together and this is the first time im going to be completely on my own. Today is going to be the last time I see him for at least 3 months because Im going to stay at a hotel next to the base for his AIT. I just dont know what to do without him. He is my rock. I have not slept since he left for meps 3 days ago. He was suppost to ship out today but his flight was cancelled till tomorrow. I am so sad, I cry every single time I think about him. We have been texting since he left but by 9 tomorrow morning we wont get to talk untill he is rewarded with his phone on sundays. I will write him everyday but I need to hear his voice. I need him with me. He is the love of my life. I hate that he want into the military but i will support him no matter what but since he signed up a month ago it has already made our lives difficult. we had to reschedule our wedding twice. How can I make this easier on the both of us. How can I keep both of us happy and possitive? Somebody help!