Do you believe God answers prayer? You must if you asked for healing. Why ask if you don't believe that God answers prayer? And you must believe in healing, so why have no faith that God can heal a dog through prayer?
If you were really hungry for God, you would want to know how to abide in Him and have His words abide in you. John 15:7; 1 John 3:21-24; 1 John 5:14-15.
Instead you DO NOT BELIEVE SCRIPTURE, but rather your own experience, and have the nerve to call me a liar just because my life proves the scripture to be true. You should believe scripture and find out what's wrong with you. My life confirms scripture, because I make sure I abide in Him. I also make sure I know His will BEFORE I pray. Think of chemistry class. To get the desired result, you must have and include all the ingredients in the right order. If you fail, it is not the fault of the formula.
14 Now this is the confidence that we have in Him, that if we ask anything according to His will, He hears us. 15 And if we know that He hears us, whatever we ask, we know that we have the petitions that we have asked of Him.
That is probably the case also regarding your not believing the scriptures that say we are dead to sin, let alone 1 John 3:9. It is just not your experience, but also you don't know the true meaning of 1 John 5:16-17 as found in our schoolmaster.