"Give thanks to the Lord, call on His name; make known among the nations what He has done. Sing to Him, sing praise to Him, tell of all his wonderful acts." -- 1 Chronicles 16:8-9 NIV
We should really than God more for the good things He does for us.
Maybe you're having trouble making ends meet and can't go out to eat, but there is still food on your table. Maybe you don't have food on your table, but there are places you can go to eat.
Maybe you are sick, but at least you're not dying. Or maybe you're dying even, but you have loved ones to lean on. Maybe you're dying, but if you trust in the Lord you will still have everlasting life in a new, healthy self in Heaven.
A lot of people have tough times, but try to remember what blessings God has given you- sing praise to Him- and you will have a lighter heart.