Hi dear, dear sister,
I suffer from the same thing. Your deep concern shows your love for Christ. As the responder said, God is not out to get you. Jesus shed His blood for all our sins, all of them. He is your Protector. I googled this,"blasphemous thoughts," and Grantley Morris' pages on this popped up in the search results. I went to that and started reading, page after page. Such relief I had never known was there. God's love is deeper still than anything the enemy can put on us. Jesus' promise that no weapon formed against us can prosper is true, that He who is in us is greater than he who is in the world, that He came to destroy the works of the evil one, and on and on. Luke 10:19 is your shield. Dr. Linda Mintle OCD is a good Google search result, too, but I encourage you to find Grantley Morris. One thing I did is start memorizing Scriptures about God's character. Like these- For Thou art not a God to even look upon wickedness, neiither shall evil dwell with Thee, (Psalm 5:4) The Prince of this world is coming, and he has nothing in Me (John 14:30) For God is light, and in Him is no darkness at all; To show that the Lord is upright, and in Him is no darkness, I AM the light of the world; for this purpose was the Son of God manifest, to destroy the works of the evil one; Jesus of Nazareth, Who went about doing good, and healing all who were oppressed of the devil, for God was with Him. On and on. I wrote them on index cards and put them where I could see them. I listen to audio Bible, read by David Suchet on youtube, and good preaching- Tim Keller, Bill Johnson, Ravi Zacharias, Tommy Nelson. Dr. Linda Mintle discusses forging new neural pathways to replace older ones. Jesus is your light, and He promised to never leave you or forsake you. You are more than a conqueror through Him. The more you stay in the truth of the Word, the more you will be free. The thoughts are illogical and irrational, but they still come, so the more truth you focus on in your brain, even in the background, the less room for the enemy's thoughts. All he's got are lies. Jesus is the WAY, TRUTH, and LIFE.