It is the best feeling in the world! If you do all that you can do you have no remorse and you won't second guess yourself. If it is out of your hands you just have to let it go and believe that it will work out as it's meant to. It's tough at first, because you always want to fix everything, but you eventually realize that you become self-destructive from beating your head against a wall. It doesn't mean that you won't hurt over things, you just have to have faith.