When you believe in God you are able to  pull the strength you need, from your faith....
I have a very good relationship with GOD... I consider myself religious in my own way... I do not attend church every Sunday, nor do I know all aspects of the bible... Have I read it, yes... Do I believe the entire thing page by page, no... Do I believe some of it, yes... I know God is there, how? I have seen and had interactions with spirits almost everyday of my entire life so far... So if our loved ones that have passed are there I am for sure, he is too... I keep my faith in him, and I know that if I need him he will be there... I know that he will answer my prayers, it may not be the way that I expect it to be answered but I know for sure they get answered...
Pulling strength from our faith is an amazing, and great gift... I have seen so many people who have lost so much and continued to have faith... Some of them even experienced a stronger connection with their faith after a tragic event... I believe this is due to the spiritual energy that they know is around them (thanks to GOD)... I always believe things happen for a reason good, bad, and the in between... If I am denied something at a point in my life, I just take it as GOD knows it is not my time for it and I know some day it will be mine, when that time is right...
It is also important to be aware of all the spiritual energy around you, for example have you ever had your mood change when someone around you was having a bad day? That is because their spiritual energy is coming into yours and affecting your energy... Or have you noticed that when your having a bad day your pet comes over, and you feel better? That is because even your pet's spiritual energy can help affect you, and more often then not our pet's always help us in a positive way...  Before you change yourself because your life is moving in a negative direction, look at the company you keep... The family you spend time with, the friends you have... Make sure you just don't need to change the energy around you for your life to become more positive....