God's promises are good, they bring us life and hope.
But they can be badly interpreted to yield dangerous assumptions. We can assume that God's promises mean we'll almost always be successful and most things will go well. Then when they don't, we lose faith or we panic.
Paul says "For no matter how many promises God has made, they are 'Yes' in Christ." Jesus is the fulfillment of the promises. Jesus, aka Immanuel, "God with us." The most basic promise is not that we'll have pleasant circumstances, but that God will be with us in our circumstances.
So let us trust the promises, not what we assume the promises ought to mean.