One thing that I have come to understand clearly in my walk with God, is that sometimes it is easy to trust Him and sometimes it is easy to forget to trust him.
God, in his infinite wisdom, knows that. That is why he wants us to remember to remember how good He is.
Look at what He told Moses to do.
I love what one scholar says of that passage.
Whatever they may become in the better times ahead, the people of Israel are never to forget what they were. Their plight in Egypt is described graphically as בית עבדים, literally, “house of slaves… Their rescue from that plight, they must recall, was made possible only by the strength of Yahweh’s power, attested by the whole range of the proof-of-Presence sequence of the ten mighty acts.John I. Durham, Exodus, vol. 3, Word Biblical Commentary (Dallas: Word, Incorporated, 1987), 178.
And in another Passage it says
The month of Abib was the first month of the year in the ancient Hebrew calendar. So, basically January.
God wanted them to remember where they came from (slavery) and who delivered them (God) because he knew that they would face challenges. And without their remembrance of how strong and powerful He is, they would easily give into despair.
We are in a new year. One that will be filled with both new joys and also new challenges. If we are to be able to face those challenges head on, then we must take time to remind ourselves of what Gods has done for us.
Consider writing a list of everything God has brought you through (or a partial list of the top things) and then looking at that list daily and thanking him for all that he has done.
This will build our faith armour and when faced with a decision, or an adversity, it will be easier to not despair and to walk through the open door that God has placed before you..