The biggest inhibitor to change lies within yourself.
Smell the cheese often so you know when it is getting old.
Look at what happened in the Past. Learn something valuable from it. Do things differently in the present.
When you change what you believe, you change what you do.
Finding inner success is the best, easiest and infact the only way to achieve and enjoy everything else in life.
I guess we resist changing, because we are afraid of change.