Proverbs 16:9
In his heart a man plans his course,
but the LORD determines his steps.

We can plan ahead for the future as much as we want to. All of that is meaningless, however. The Lord is the one that determines where we go, what we do, and who we are. The thought of this can be quite scary. Being denied our desires isn't necessarily a fun thing. However, we ought to remember who God is in times like that. When God leads you in a different direction, have faith! Give thanks to the Lord for He is good! His love endures forever.