A good question is what does God's sovereignty have to do with how we view Him and us? Does it mean God never changes His mind? Does it mean we can be on a course of destruction (and rightly so) but when we pray in the name of Jesus., God changes our course?.... but if we didn't pray., our course might not have been changed? Yes. Prayer changes things.
God's sovereignty is a fact but how it plays out in our lives is a mystery. What is not a mystery is we need to have a close relationship with Jesus every day that includes talking to Him and Him talking to us through the Holy Spirit and by reading the Bible and "allowing" the Holy Spirit to lead us if we want God's will done in our lives. If we don't do those things., God's will is not going to be done in our lives.
For myself., I don't worry about the major mysteries anymore but I do want to be in His will and how to be in His will is not a mystery.