I did nothing on my own. The Lord brought me out of that bondage. And He is leading others out as well. He will lead you out, too, if you will let Him. The Lord wants a personal intimate relationship with each of us.
Legalism interferes with that intimacy.
If you are convinced that you now know the truth, then preach it. I'm still on the journey. Closer to the beginning than the end. Jesus is still teaching. I am still learning.