Losing Faith

I always hear that we must keep the faith and our prayers will be answered.  I believe in God but have always found it hard to trust that someone else will care for me.  This may come from my childhood and that I felt I wasn't nurtured and had to find ways to comfort myself.  It has been over one year since the bottom fell out of my security and I just feel like my prayers aren't going to be answered.  I feel like I have hit bottom and cannot go any lower.  Maybe it is karma and I wasn't very sympathetic to others in need.  Or is it that I am not worthy of having my prayers answered?  I know, I know...be thankful I have my health and family.  I am very thankful for both but just fear for what my future may become.