If you think of your problems and challenge faced, that could made you skipped "when to know and how to appreciate God for everything" But the truth is that if you have no reason to thank God at all, remember the gift of life.
Everyone being going through stuff in life, not only you. I have come to understand that challenges and problems didn't know the border, anyone could encounter it and everyone are involved, there is no exception.
When a life trow alon a problem much, then you need to understand it's not you alone, but everyone else facing another challenge in different ways.
Always be greatful for what God has done, never lose hope, enjoy the rest of your day.