Remember you love writing. It wouldn't be worth it if you didn't. If the love fades, do what you need to and get it back. Remember writing doesn't love you. It doesn't care. Nevertheless, it can behave with remarkable generosity. Speak well of it, encourage others, pass it on.
Faith is walking by faith, not by what you feel. You are not always going to feel that Jesus loves you or that God is good, but you know He is. It is the up and down of the journey.