Sometimes Allah gives you bitterness in this life so that you can further enjoy the sweetness of the hereafter.
If you're not doing it for Allah, then don't expect any help from Allah.
In trusting Allah, remember that what's best for you might be what's most painful.
Allah is Most Merciful even when He sends us trials, for even His punishment is for our own good.
When you give, expect nothing from people and everything from Allah.
If you complain that Allah is testing you too much, you're failing the test.