If not today, declare when and stick to it...
or else they may not actually be your intentions.
Even then, be aware of the difference between your ambitions for God and God's ambitions for you. After all, Judas did things for and in the name of Jesus, and yet he betrayed Him in the end.
So whoever knows the right thing to do and fails to do it, for him it is sin. (James 4:17)