Prayer for Faith and Trust

I know I am secure in my salvation and I still feel like I’m slipping away in my walk with Jesus. I’m struggling so hard to keep from sin. It stresses me out so much. I guess in the end it’s just the trials of life. It’s the enemy. I am not living in the victory that Jesus has won for me. If I try harder, I fail. If I seek to surrender to His will and the Holy Spirit, I fail. I don’t know whether to try harder or the stop trying and just let God. It’s very distressing.