Hold On! Help is on the Way

How do we know that what we are doing is right? How do we know that the path we have chosen is the correct one? How can we be sure we are walking in the Will of God? When things are getting hectic around us (as things sometimes will) and we start to feel pressed in I often wonder this very thing. We have made major life changes lately, and we believe we are in the path God has chosen for us, but how can we be sure? Are there signs? Will we ever know? or is it merely a matter of walking and moving until we get where God is taking us?
I began homeschooling this year and have felt quite overwhelmed from time to time. I spent much of my time wondering if we had made the right choice. I felt so under qualified and ill-equipped for the job. But as we have continued and every day that I don't quit, God shows up and proves that he is enough.
I read this verse today in the Young's literal translation and it really spoke to me.

22Cast on Jehovah that which He hath given thee,
And He doth sustain thee,
He doth not suffer for ever the moving of the righteous.

It's easy to read this in other translations and get the idea that God won't allow us to fall or fail, but here I heard that he sustains me. Even though things around me are getting hectic, He won't allow it to go on forever, so hang on to Jesus baby. Help is on the way. Failures, falling, mistakes they will happen, but keep turning to God and He will provide you with what you need to make it.