I and all people fight with the sin that dwells within our flesh.
Galatians 5:17 (LIV) For we naturally love to do evil things that the Holy Spirit tells us not to do; and the good things we want to do when the Holy Spirit has His way with us are just the opposite of our natural desires. These two forces within us are constantly fighting each other to win control over us, and our wishes are never free from their pressures.
Gal 5:17 (AV) For the flesh lusteth against the Spirit, and the Spirit against the flesh: and these are contrary the one to the other: so that ye cannot do the things that ye would.
Just like any addiction, sin can be difficult to overcome, and your faith, as displayed in your testimony of life, and the blood of the lamb is how it will be overcome. However, a big price is paid for sin in a person's life, just as it is with, maybe smoking - as an example. You may have to learn the hard way that smoking leads to cancer. It is the same way with sin. It will take something away from you every time, and although you may not perceive it, over the years you will come to know just exactly how much it has taken away from your testimony and life - especially unrepentant sin, as we are called to repent.
Ask for God to live His life through you, and submit yourself to Him in all things. While we are weak, He is strong and able. Each person has mountains in their lives to overcome, and God's grace abounds far much greater than sin. Read the Bible and renew your mind everyday, and pray. There is sin that does not lead to death, God understands, and does not throw children out for messing up their diapers or learning to grow up. He is a much greater, more loving Father than any man, yet sin is SO much more deadly than diaper training, and we need to grow up in Him and be encouraged to do so.
Keep asking for forgiveness and keep trying to overcome sinful addictions and mountains that are in life. God is faithful to forgive those that are honestly trying, but there comes a time when God will not be used or mocked by insincereity or slothfulness. A person reaps what they sow in life, and those that sow to the wind get back the results as desvastation (the whirlwind).
I should add that for every temptaion to sin, there is a way out, and that God provides us with answers to the flesh, as He was tempted as all men and feels for our infirmities.
1 Corinthians 10:13 There hath no temptation taken you but such as is common to man: but God is faithful, who will not suffer you to be tempted above that ye are able; but will with the temptation also make a way to escape, that ye may be able to bear it.
Hebrews 4:15 For we have not an high priest which cannot be touched with the feeling of our infirmities; but was in all points tempted like as we are, yet without sin.