Becoming a changer!
How can I become a changer? I think first, you have to believe it. We see all around nature things that evolve and change. We are also beings that change, actually, that's the exact reason as to why we came to earth, to change from one spiritual being to a mortal being (check Plan of Salvation for more info.)

But, while we are at this life quest, trying to change, trying to change our environment, our habits, the most important thing to do is to think about the One that knows everything. The One that knows us and knows our potential. 

Elder Holland said one time, "Come as you are, don't plan to stay as you are." the gospel of Christ is a gospel of change. Elder Maxell said, "Coming unto God is not a negotiation, but a surrender."

How do we change then? One of the videos said, "Apparently, earth has not provided the answers, now shall we try heaven." I can see that we can apply that phrase to everything. While we are here on this earth, let's apply it.