When you say or think of the word impossible you speak or think from a very powerful source. When you speak or think from a mentality of impossibility you are yielding to a very powerful source. The truth is many, many things are impossible for you and me. Sometimes we try things and fail because they are impossible for us to do. And there are times we don't try things (and don't succeed) because we see the task as impossible. In both cases impossibility rules us and keeps us from succeeding.
In spite of all the impossibilities...the Bible says, "The things that are impossible with people are possible with God." (Luke 18:27) What we cannot do...He can! Understand that one situation to us is not the same situation to God. Understand that the mountain before you is nothing before God. We cannot be delusional and deny the mountain exists. We must acknowledge to God the mountain exists, and without Him it won't move. But we also acknowledge to Him that because nothing is impossible to Him it will move!
What impossibility are you faced with today? You can't do it. You can't fix it. Why? Because it is impossible (see definitions above). However, what you cannot do...He can. Remember, He is God...and you are not. The things that are impossible for you are possible for God. Your situation appears a whole lot differently to God than it does to you. To God it is very, very, possible! Therefore with God...you can do it!