Let the favor of the Lord our God be upon us;
And confirm for us the work of our hands;
Yes, confirm the work of our hands.
God's working upon us does not discharge us from using our utmost endeavours in serving Him and working out our salvation. But, when we have done all, we must wait upon God for the success, and beg of Him to prosper our handy works, to give us to compass what we aim at for His glory. We are so unworthy of divine assistance, and yet so utterly insufficient to bring any thing to pass without it, that we have need to be earnest for it and to repeat the request: Yea, the work of our hands, establish thou it, and, in order to that, establish us in it.
~Matthew Henry' Commentary (Psalm 90:12-17)
Begging the Lord for help is the best thing I can do every day, especially when I think I don't need it.