You seem to think that God is a micromanager which decide everything. It's not the Biblical God. This is explained by the myth of creation (yes it's a myth, but it's not because it's not historical that it's not meaningful). Evil and suffering wasn't in God's plan. What was in God's plan, was freedom for the Creation, which is not possible without an alternative: follow God's will, or not. The Creation chose to try an other way, and God cried. But he respected the choice.