God is aware. His Spirit is always near and within to help us. Struggling with our pasts, something that is unchangeable, is too much of a heavy burden for us. We cannot and were not meant to bear it alone.
We must always look to God, first as a formal committing over to him each morning the health of our mental and emotional state. Next, we must learn to immediately look to God whenever troubling thoughts and memories surface.
There are many short prayers that you can use. I find that this prayer has been helping me to cast down imagination and every high thing that exalts itself against the knowledge of God:
Father, help me to see my past as you see it. Help me to see myself as you see me. Help me to see people as you see them. Help me to look beyond the flesh and into the spirit of myself, every person and every situation, past, present and future.
Pray this prayer, or one similar that you create, and you'll find yourself walking more in the Spirit each day.