devastated

Hey so just a little rant.  Recently my neice has come to stay with me she has been her for about the last 3 months and I have been raising with the help of my family as well being that I am only 16.  Though for the most part I am the one spending the most time with her, feeding her, changing her, playing with her and etc.  I have fallen in love with this little 19 month old girl.  She is my pride and joy I love her as if she were my own daughter.  Now that her parents have according to cys cleaned their act up it's time for her to go home.  I've grown so attached to this little girl that it is absolutely killing me to see her go.  I can't even contain my tears in order to write this.  I'm an absolute mess.  I know she needs to go to her parents but I'm scared she won't be taken care of or given what she needs to develop and grow.  I'm scared I'm never really going to see her anymore.  I love her so much and this is the hardest goodbye I have ever had to endure.  I don't know how I'm going to keep it together.  I'm really not keeping it together at all.