internal conflict: do it or don't ?

We live in this world by making choices. What to wear, eat , drink. Where to live,go. etc.......
And sometimes we get conflict inside us. Should I do it or don't? or which act should I take?
From brain science perspective, brain is calculating which one is more efficient, and sometimes it takes so much time!! More or less, both ways should be almost equal. This is why we get conflict.
Well, I think the best way we can do is to do it rather than not to do it. There are 2 reasons.
First, time is limited. Second, benefit you might get when you do it is something we can't let alone.Challenging is also good experience.
This is my new principle. I will live with keeping this in my mind and if I get conflict, I apply this principle to this. Step by step, I am gonna be stronger.