My husband tells the story of a military couple who were promised that they will not be sent to the war-front only to get posting letters some months after they had signed up. The host of the show also invited a Military lawyer to "help" this couple out of their quagmire.
The lawyer asked the couple to restate what they had been promised then asked them a simple question: "Was it written down?" To this they answered: "No" - and that's when everything fell apart. The lawyer proceeded to inform them that they were fighting a losing battle. The bottom line of all he said was that they could not go forward with a verbal promise from the recruiting officer...to be tenable and fulfilled, it had to have been written.
The flip side to this is that so many of us don't even know what is written and what we have "legal" claim to. Psalm 119:89 says that God's word is forever settled and 2 Cor. 1:20 says: "For no matter how many promises God has made, they are “Yes” in Christ. And so through him the “Amen” is spoken by us to the glory of God." (NIV) So in effect, all God's promises to us are really signed, sealed and delivered...it's up to us accept His package.
Going back to where we started, you have complete claim to all of God's promises - because they are written down. What do you believe you need in order to have a fulfilling/fulfilled life? Is it written down? I can assure you that if your need is written down in God's word, you can expect it from God's storehouse because "this same God who takes care of me will supply all your needs from his glorious riches, which have been given to us in Christ Jesus."*
Now it's up to you - read the written word, then request & receive all His promises to you.
*Phil 4:19 - NLT