Die or Live?!?!

We'll my name is Iris and I am 15 soon I'll turn 16 and I am still i high school
I have an abusiv father a grandma that hates me and a mom that loves me
But is that a good reason for me to keep living I have had 3 boyfriends and each one of them cheated on me my best friend is the only one that understands me
What do I need to make my life forth it or is it my destiny to not be happy ever and die. The only one that can save me now is an angel. But where can i find one. It's not like he/she will come into my life and introduce themselfes "hi i am your angel" , or yes?