None of what you've done is wasted

"Yes," says the Spirit, "and blessed rest from their hard, hard work.  None of what they've done is wasted; God blesses them for it all in the end."  

-Revelation 14:13 MSG

Whether you can see it or not, when you work hard, do the right thing, live with a right heart, and keerp striving forward for Christ, nothing - and I mean NOTHING - will be wasted.  Soon, the fruit of your hard work and dedication will shine through.  Hang in there - it will happen sooner than you think, better than you can imagine, and hand-blessed by God himself.

Iniquity keeps God from hearing us

"If I regard iniquity in my heart, the Lord will not hear me;" Psalm 66:18

Speaking lies, fault, and ignorant words cut you off from the Lord, leaving your life meaningless; wasted.

However, speaking words of righteousness keep you connected to the Lord, leaving your life meaningful; precious.