I feel really depressed, i am 13 help?

I am a 13 year old girl from Libya, but recently because of whats happening in Libya i feel really depressed.i mean, i don't eat like i used to, i blocked out all of my friends (i don't see them anymore) and most of all i am soo homesick, i have not been to Libya for 2 years because of studies, and i miss my family soo much. in the past few days it is getting worse, i haven't been out of the house for like 2 weeks, i just feel depressed. i have been calling my best friends in Libya and they sound happy with out me, which made it worse, i literally cry everyday, i feel like dying sometimes, help what should i do, please no mean comments, thanks to everyone in advance.