How do i make a choice? The RIGHT Choice?

Have you ever really thought about what life meant to you?
it doesnt really seem to cross ones mind until it may be to late.
but when is late?
You may be disappointed that you havent done something positive.
But you might just regret not being more adventurous in life.
yet how do you know early enough to make a change?
its one of those things that you cant really understand.
when you have thoughts that something isnt right.
when you realize youve been on the wrong path.
you can change your future,
but you cant change your past.
theres nothing left to do.
there arent "take backs" in real life.
its just live and learn.
so how do you prevent making an error?
when you want to do one thing,
but another stands in the way.
when you want to make a choice,
but you keep on thinking about everything and everyone.
How do you pick the right choice for you and for those around you?