Luck, is there such a thing?

I've thought that wishing someone luck was pointless for a Christian. You're about to take a hard test and someone wishes you luck. Well, if God's in control, there really isn't such a thing as luck. I wonder though, if God controls even those kinds of things. The question of whether luck exists or not is somewhat inconsequential but it begs a deeper one, just how much control does God have? You say God predestines everything, well within that, is it just the end result is the same, but are there multiple paths toward that? Does God really control what college we go to, what job we have, perhaps even small things like what we eat for breakfast? Is breakfast too small a thing, but then at what point do we draw the line? You say it's common sense, I say a meal changed the course of history when Esau sold his birthright for some food. If we have different standards for how we treat different things, what defines that? College is a huge thing so God must control that. Is it really? I hear a study done that people who made it in life (had lots of money) had more in common in their character than in the schools they went to.

We pray and we agonize over large decisions, but in the short term, the seemingly unimportant stuff, we do whatever we want (and everyone's definition of large and unimportant is different). I think it would do me lots of good, every hour, if I asked God, "God, how should I spend this next hour?" I think that in itself will solve a lot of our problems in the Christian walk. But is that what God expects of us? When we give our lives to Jesus, that means not just our soul and our material things, but our time as well, what we spend it doing. Perhaps, being constantly in prayer is how you pull something like that off. If you're in constant contact with the Father, then you'll always be connected to His mind and heart for you and people.

Regardless, wishing someone luck is kinda a dumb thing when you could say "Go with God" or "God be with you" or "praying for you." I guess those things are weird to say sometimes... Perhaps people think that it's not such a big deal that it needs prayer. I've got that reaction before when people are like "I'm okay, you don't have to pray for me" kinda thing. Are there some issues that are too small to pray about? The more I think about this, the more I say no because we don't know how things are gonna turn out. You eat one wrong thing and that gets you sick, which sets off a whole chain of events that you have no idea how it'll turn out (Maybe God uses it for good, but you don't want to get into bad situations just for that). All in all, perhaps better to just bless people instead of wishing luck. Can't go wrong with the former.

Test Case
Me: What's up man?
Friend: Got a crazy hard test today.
Me: aww man good luck on that.
Friend: thanks I'll need it

Me: What's up man?
Friend: Got a crazy hard test today.
Me: aww man... Go with God
Friend: thanks I'll... wait what did you say?

or something like that? haha regardless, maybe I'll start saying that anyway.