To declare God's word over your life is to affirm what He already said about you so always make bold to declare God's word over and in every situation, faith in His word is the victory that you require at every stage and in every challenge.
His word has not and can never fail, His word puts you over in life. So! Let's take a look at the scripture below:
you can affirm it by repeating in faith to your self what it says.
Psalm 16vs6
The lines are fallen unto me in pleasant places; yea, I have a goodly heritage.