I agree with this completely. I think Hashem wants open lines of communication – its ok to say things like “I am angry because…” We are not like Christians who have to go through an intermediary to talk to Hashem – we pray directly. Tefila doesnt have to be about only praising Hashem if thats not what you are up for.*
* This is my personal opinion and to be honest, I don’t know how it fits into halacha, so maybe one of the more learned people can tell me if this is apikorsus or not.