I don’t know whether I’m coming or going

“I’m coming home” or “I’m going home”?

Generally, we use 'come' when we are talking about movement towards ourselves, or towards the person we are speaking to, and 'going' when we are talking about movement away from ourselves and the person we are talking to.So, "I'm going home" is away from where you are now, and away from where the person you are talking to is - perhaps you are both at work or school. But someone you live with might phone you and ask "When are you coming home?" (towards themselves), and you might say "I'm coming home now" (towards the person you're speaking to). A friend that you don't live with might phone you and ask "What are you doing tonight?" and you might answer, "Well, I'm going home for some dinner and then I was thinking of coming to see you." Your friend might reply, "Actually I'm going to the cinema with Bob and Jane. Why don't you come with us?"

(THANKS TO Dr Grammar, Churchill House - School of English Language, Ramsgate, Kent, England http://www.churchillhouse.com/)