This can be a difficult thing to do if you are someone that always insists on his or her own way all the time. You should be aware that there are times when "your way" is not the "right way"! What? You mean there are times when I could be wrong? Surely not!
Think about it for a second...has there been times in your life when you made a decision that after it played out, you realized that you should have done things differently? I would venture to say this is true in most everyone's life. If you say that has never happened, I would have to say you are more than likely fibbing to me right now.
Being flexible can also be difficult if you react poorly when plans change. You have your heart set on your weekly date with your husband, yet your baby starts running a temperature and your plans must change because your child needs you more than you "need" to go to the movies. How do you react when this type of scenario happens? How you react depends on how well you use the character of flexibility in your daily life.
Being a stubborn person can cause havoc in your life...put that stubbornness aside and learn the peace that comes from being flexible. Something that one of my friends used to say when we were tying to decide where to go to eat dinner..."You decide, I'm flex!" Try to incorporate that saying "I'm flex"! into your life and really mean it and watch your life become less complicated.
A verse to keep in mind when trying to implement this in your life is...Set your mind on things above, not on earthly things." - Colossians 3:2 Set your mind on the things of God and the earthly things will become less important.