Please, folks, "go back my home" is not proper English!
"I'm going home." (most natural)
"I'm going back to my home." (fully correct, be it somewhat redundant perhaps)
"I'm going back home." (like 1; also used in a more literary context of things like going back to your birthplace, your parents' old home, your alma mater, etc. Or dying even. You could use 1 to express such sentiment too, but not 2)