Exodus  4:8 And it shall come to pass, if they will not believe thee, neither hearken to the voice of the first sign, that they will believe the voice of the latter sign.  4:9 And it shall come to pass, if they will not believe also these two signs, neither hearken unto thy voice, that thou shalt take of the water of the river, and pour it upon the dry land: and the water which thou takest out of the river shall become blood upon the dry land.  4:10 And Moses said unto the LORD, O my LORD, I am not eloquent, neither heretofore, nor since thou hast spoken unto thy servant: but I am slow of speech, and of a slow tongue.
See something here. God tells Moses that one way or another, the people will believe him. He (God) has given Him (Moses) all he needs. He says if you try the first and they don’t agree, try another. Moses says ‘but I can’t talk’; he is focusing on what he does not have!
But there is another subtle thing I want to bring to your attention; the main thing God has given to Moses, is persistence. Notice ‘if they don’t accept one, try the other’; God makes it appear that what he needs to convince the people is persistence – a persistence at doing what he has to do!
What do you need to get done? Focus on what you have, and keep using them