I speak from experience. There was a time in my life when I barely cared what my loved one's thought, much less authority. I was lost. I had no belief system beyond the point of thinking life wasn't fair to have given me that portion of pain. My best friend would try to get me to talk to her mother because she knew I didn't believe in God at the time and that she would pray with me. I didn't want to apply it then, but I'll never forget that conversation. Strangers came up to me several times telling me about 'a calling' a upon my life. I honestly thought those people were crazy, but I never forgot. My counselor while at an alternative school kept telling me I was 'too gifted' for this. I never-minded him too. But it still remained ingrained in my heart.
Its those seeds that they planted, that God preordained them to plant in my life, that took bloom YEARS later. I never forgot the light that was passed to me in my time of darkness. Even though I didn't want to hear it at the time. Those seemingly small words of encouragement set me on different path to get to know God and the purpose within me, for myself. It was years later of course, through seemingly small steps that eventually planted me on a journey of 'cherry blossoms' I had been on all along.
I pray for you dear friend. That you never ever stop giving or being the positive person God called you to be because it seems it's taking you no where or even impacting others. When you are called to plant seeds in people's lives, trust God to do the rest.
No one is too far gone, too far used, much too deep to be the person they were birthed to be. Never judge someone because of their past or current path. You never know where God is taking them in the future. Sometimes all we can do is plant the seed...
And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Galatians 6:9