Brother, if you have overcome, it has been nothing less than the power of Christ in you that has given you the ability to do so. I am sorry I cannot endorse chanting...whether its chanting scripture verses or chanting 'Omm' under a tree. If that truly were the solution to our sin, the Jewish Scribes had it made in the shade, for they could quote the whole book.
Christ came to "condemn sin in the flesh" because only He could do it. It is Christ in us that brings sin to its knees and renders it powerless in our lives. It is "not by mans might, not by mans willpower, but by my Spirit says the Lord"
Jas_5:17 "Elias was a man subject to like passions as we are, and he prayed earnestly..." there is a key example of where "just prayers alone" are most certainly enough.
Jas 5:16 Therefore, confess your sins to one another and pray for one another, that you may be healed. The prayer of a righteous person has great power as it is working.
Your statement "He needs real possible solutions, and not just prayers alone." is a gross underestimation of the power of prayer.