What if you ARE communicating with God, but perhaps just not aware of what God is saying?
Communication isn't just verbal. If people can communicate nonverbally, can't God communicate nonverbally as well?
The fact that you are trying to hear an audible voice is a limitation.
Additionally, it seems you are trying too hard.
Manifestations are based on our consciousness. Every negative thing that is happening in your life is a manifestation which started somewhere in your subconscious thinking. The key is to mentally shift your subconscious thinking into the positive. It must be tamed to do your bidding, instead of running on negative autopilot.
Affirmations work to do this, but the affirmation must be believable to you, and it mustn't feel like a chore (if you're counting how many times you did the affirmation, that's an indication you're making it worse for yourself).
It must be fun, natural, believable and resonate with you.
To make it believable, you could say, "I choose
to clearly listen God"
Maybe you could use this, "I choose to be harmoniously aligned with God and"
BTW - could it be that God is speaking to you right now, through these words?
I encourage you to be open to the possibility!