He already knows everything anyway. Trying to hide your inner self from God is as silly as Jonah thinking He could get away from God by running to another city.
But it's a gift to Him when we tell Him what's going on. It's relational, it's vunerable.
Of course God could pry in and yell at you at anytime, exposing what's in you. Funny thing is, He knows your insides better than you do. But when we willingly tell Him, it's an act of trust. Statements like "God, I don't know if I trust you," can still be an act of trust. It's even a good idea to let Him in on the darkness in you. Perhaps these areas need it especially, because He's light and can help. I'm a bit embarrassed to say that I've bluntly told God that I want things more than Him. I say this because I do at least want to want Him more and I figure admitting it is a step in the right direction. Maybe you're not sure if you can let Him in yet. Then just say "God, I don't know if I can let You in yet." This is still incremental surrender.
Wherever you are, invite Him. I'm not promising that it will be comfortable, in fact facing the realities within you is almost certain to cause discomfort, but as you allow truth to exist more and more inside you, you'll become more and more free.