Sweetypie, you are so young, I know the older people in your life are telling you this as well, but it is true.
Jesus loves you so much,more than any man/boyfriend/fiance/husband ever could. You really shouldn't feel lonely, if you are feeling lonely then talk to him, cry with him, let him hold you, spend a while in his arms, he heals all hurts.
Being a single christian women is a very special place to be, cherish that don't wish it away, and be patient, if God wants you to be with someone, you will but His timing is PERFECT, so wait on him. If you want to be dating someone then you should be thinking marriage, the point behind christian courting/dating is marriage. If you not wanting to get married then don't look for a partner.
I know conventional dating is all about sex, the physical, pleasing ourselves. Christian dating is not about this, God actually tells men not even to touch a women. Are you able to resist this? Saving yourself for marriage is the best gift you can give your husband, right now, while God calls you to be single you should be thinking about pleasing God. A women's heart should be so lost in God that a man needs to seek HIM in order to find her.
You should be craving a desire to walk closer with God, not to have a boyfriend.
I don't want you to think I may be judging you, trust me I am not. We in the exact same boat. I moved away from everyone 4 years ago to live in New Zealand and came here and never made friends, I have made acquaintances at my current church, yes I have my parents and my brother which I do talk to but i understand there is only so much, at 16, willing to share with your parents.
A few months ago I moved away from my parents to come and study and now I am alone, and sometimes I feel lonely, but that loneliness is not for a boyfriend, its for a desire to be closer to God.
If you ever want to talk, leave me a message, i am here, you are in my thoughts and prayers, I pray you draw so close to God that your life is overflowing with love and completeness. That which God gives.
God Bless you sweety!