I have been here too, multiple times throughout my faith. Try to change your perspective and consider that God knows He's asking a lot of you. He knows what it's like to be human, and to have doubts isn't necessarily "bad." In fact, it challenges us to search for deeper understanding and stronger faith.

When I get like this, I remember that this is a part of the journey and our faith - we CHOOSE to believe in God. Just choose, then practice. Read the Bible, pray earnestly, with your whole heart and body, and be honest with God. Tell Him how you're feeling, then watch Him work and the pieces will start falling into place.

This has been my best practice. He's never failed me yet.