Whenever we make a declaration unto God we are saying that we are completely relying on Him to fulfill our requests. We are trusting Him fully with our hearts' desires. When you believe in God for something, there are things you must keep in mind.
James 2:17 states "So you see, faith by itself isn't enough. Unless it produces good deeds, it is dead and useless."
Here are some tips recommended by the "Saved in the City" Christian organization to keep you:
1. Find scripture about it
2. Begin to pray about it
3. Communicate with God often about it