Healing from sexual sin and impure thoughts

I wanted to bring this before you. I wanted to confess before god willfull commited sexual sins impure thoughts and struggles with homosexuality. I wanted to open up honestly with humility and trust in his mercy. I wanted to acknowledge the choice that I have actively chose to indulge in looking at women lustfully and harboring impure thoughts. With my head injury this is something thats hard for me to overcome. My heart at times is hard and my mind wants to think of these things. I wanted to bring these things out and ask god for forgiveness and for a clean heart and mind. I commit to repentance and turn away. But I feel I have ran to long and to far. I feel like my heart is hardened and it’s hard for me to feel gods forgiveness. I pray that god can give me a clean start. But I have to turn from these sins and change my mindset that when these impure thoughts come in I have to immediately get them out of my mind. But I have to work on not looking at things that cause me to lust or sin.