sorry , I don't understand what you mean.may I believe you want to say: never the chance bring what for you,at least you've changed?

No matter you want to or don't want tothe life always change,I think you can't believe it was called "lose",every change is used to make you live better,you will more smile,hard to study or work,communication more with others,etc.however the result ,don't care.

I think both are needed in the betterment of life. Sometimes you need a chance in order to change, and sometimes you need to change before you get a chance. A right change at the wrong chance can have have a negative impact. So will having the right chance but making a wrong change. Relying on just one without the other would not get you far. As with most things, you'll need to find a balance between both and make calculated decisions in order to better your life.

Really interesting question. I would like to complement asking: what kind of change one has to do to improve his/her life?