That seems fair. Did you go through any kind of Transformation where you learned to control your thought-life? If so, what were the mechanics of how it all "worked"? In other words, can you describe a "before" and an "after"?
Love Jesus with all your mind... Don't look at them in any kind of way you wouldn't look at your sister or mother... things like that.. until they become a habit.
You become strong in areas you were once weak and are not subject to "slipping" after you have trained yourself. It is just like every other area of sanctification. Each victory builds on itself to become a momentum and soon you are strong when once you were weak. Your first thoughts become the holy ones and your members obey righteousness because you train your body and eyes and mind keep it under subjection which becomes the normal for you after training.
There is no other path than the path through the wilderness with Jesus being tried by the devil and saying no to sin and saying "It is Written" do that and the devil will leave you and you will be filled with the Spirit and be strong in the Lord and the power of His Might.
Certainly praying to be filled with the Spirit and to operate in the Spirit and not the flesh is part of it, but after praying and believing you have to face the trials and win one victory at a time and then you will be transformed. There is no shortcut. Total surrender to the will of God and suffering in the flesh to cease from sin is the initial path but it is also the life long path, howbeit you do not always suffer the same temptations as you can become strong in one area and graduate to new and different battles in other areas that you did not know were even something you were supposed to address until the Lord brings it up one day. Those future battles are for those who have been granted access to the deeper things of God. One class at a time. Keep learning, keep growing, keep overcoming.