Long Distance Military Relationship

First before I tell me story right now, my name is Kate Im turning 17 in 2 weeks... my boyfriend is getting shipped off to Boot camp for the army for 4 months and he cant write back to me (I can only write to him).. and Im scared to find out I may only have a month with him.. I didnt realize that time would fly by this fast when I was finding this out in February after he enlisted. After his 4 months of boot camp and his boot camp grad he has more infantry training that he has to do for another 2 1/2 months.. he is stationed in Georgia. He is turning 18 when he is in boot camp and is 17 currently. He just graduated from high school and i have 2 more years.. Im a scared girlfriend and I dont know how to prepare for this long distance. Im struggling currently with depression and anxiety and Im Getting help for that.. Im just really scared and need a friend and lots of support :( please message back.