Lord, help me understand

I've been wrestling with the Lord again. wrestling on what I hear people say we need to practice, and yet not seeing it being practiced.

I've been feeling overwhelmed with all my responsibilities. and someone commented that, the things i do are not life or death, and that God is Sovereign. but that really just made me really angry.

I do acknowledge that God is sovereign. But how do I apply that to me rushing deadlines, and being delayed because I've just been doing damage control in different areas of my life? i'm really tired of hearing these words from people. It's so easily spoken, yet.. how do I apply it?

Lord, do I really not believe that you are Sovereign? how then shall I behave, knowing you are Sovereign? Do i just forget deadlines? Do I put aside responsibilities?

I don't know.. i'm frustrated. and i'm tired. Lord, please grant me wisdom, grant me rest, grant me peace...