Allah alone is sufficient for us.
Allah the exalted says:
“And in Allah (alone) let the believers put their trust” [14:11]. “Then when you have taken a decision, put your trust in Allah” [3:159]. “And whosever puts his trust in Allah then Allah will suffice him” [65:3].
“The believers are only those who when Allah is mentioned, feel a fear in their hearts and when his verses (This Quran) are recited unto them they increase their faith, and put their trust in their Rabb (Alone)” [8:2]
Even in the worst circumstances one should always have faith and trust in Allah. Be like a bird, what does this mean? People should have hearts like birds that do not collect to keep in reserve. They go out every morning to collect food.
The Prophet (SAW) said: “ A group of people whose hearts will be like the hearts of birds, will enter Jannah”
Taken from Riyad-us-Saliheen