If you keep praying to the Lord and keep asking Him to take the Lust away from you, He is faithful to be your help when you are in need.
You can trade your shame for His Joy. But you must be persistent. Continue in prayer. Continue to ask. Know that He is the only One who can take this sorrow from you. Know it and keep asking.
More than likely there are a few strongholds in your own mind that He will have to take down. I thought that I had gotten over certain things in my life but the Lord brought them back up like they were brand new and took these strongholds down for me. Apparently lust is pretty common among men... We all think we are these unique, special cases but the same traps that have snared men since the beginning still work today... Remember how Baalim told Balak how he could overcome the children of Israel? It was through lust.
It is a fight. Praying out loud to the Lord is our only hope at any sort of victory. People forget to tell each other that this is critical. As soon as I started praying out loud to the Lord I started seeing results in my life. Why I don't pray more is a mystery to me. I should get off the computer and go pray right now... Pray, pray, pray. That is where the rubber meets the road in a Christians life. Your victory in the Lord will come through your Prayers.
One of your errors is that you totally neglect the crucifixion of the flesh.
Many professing Christian's are in bondage to their lust and they are taught exactly what you teach. "Pray to God and keep asking Him to take the lust from you." That is not in the Bible.
These people are never told the truth that they have to REPENT and CRUCIFY their lust.
Those that are Christ's HAVE crucified their passions and desires.
Gal 5:24 And they that are Christ's have crucified the flesh with the affections and lusts.
It is something they have done. Someone who is still in bondage to their lust HAS NOT crucified it and is thus does not belong to Christ.
The church system is full of sin because Biblical repentance has been eliminated from the Gospel. The crucifixion of the old man has been totally perverted.
The whole purpose of crucifying the old man in repentance is to walk in victory not serving sin.
Rom 6:6 Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin.
Romans chapter 6 lays this out so clearly. The modern theologians have totally perverted Romans 6 and have twisted it into a "positional" crucifixion. This has to be Satan's masterpiece to pull this off.
The truth is right in front of people, it is so clear, yet they cannot see it.
The Pharisees acted in the same way when Jesus healed the blind man on the Sabbath. They refused the truth right in front of them due to their pride. To hold onto pride for at the expense of your soul is a very expensive transaction.
If you go through all your posts Grandpa notice that you never talk about crucifying the passions and desires of the flesh in repentance.
You Gospel is the package. You present the package of "Jesus did it all" and you just receive and trust in that and like magic you are saved.
The package gospel eliminates the death of the old man, striving, the narrow way, and walking in victory.
The package gospel is a sin gospel where you are the Romans wretch, the chief of all sinners, and you will always be sinning. It is a gospel of defeat a gospel of death. It is the gospel which is preached far and wide all over the world, all over the tv, all over the radio, in all the so called christian bookshop. It is the gospel of the MANY.
The true Gospel of the FEW is scarcely heard anywhere today.
Mat 7:13 Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat:
Mat 7:14 Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it.
Mat 7:15 Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves.