I have been angry at god, too. I think that's just a part of having a "real" relationship with god. I don't think it's healthy to try to suppress anger if that's what you feel; I think it needs to be "talked out" for your connection with god to be more full and whole, real and healthy. I don't have a view of god as a dictator or someone who expects me to feel inferior or unworthy in any way, nor someone who expects me to restrict my range of emotion in any way.