Look at Miss America. I admit, I wanted to be Miss America when I was a little girl. Having acquired wisdom, however, I see that it was not ever going to happen in my lifetime. Anyway, Miss America always says in the interview that her lofty goal is "World Peace" "End Hunger" "End Illiteracy."
Is Miss America going to achieve world peace? No. Not for lack of wanting, but that's not in her sphere of influence. Can she be at peace with God, her neighbor, herself? Yes. Can she end world hunger? No. Can she shop for a food pantry or work on distribution day? Yes. Can she end illiteracy? No. Can she teach a 5 year old to sound out a few consonants and vowels? Yes.
I am only one, but I am one. I cannot do everything, but I can do something. And because I cannot do everything, I will not refuse to do the something that I can do. And what I can do, I should do. And what I should do, by the grace of God, I will do. - Edward Everett Hale
Your goal should be within your sphere of influence. Maybe I don't have time to clean my entire kitchen, but I can clean out the pencil drawer. Broken into smaller chunks, an "impossible" task becomes entirely doable.
What achievable goals will you set (and accomplish) today?