Sypnosis: From my pov though the difference is not much (there's just a thin line between self motivation and motivation)
Self motivation is something we can say that comes from within, there is not mean or source from which you got/get your motivation from. There's no specific object/thing/being that plays a direct role in self motivation. Here, the conscious mind is the one that mostly is taking charge for this.
Now motivation is something that doesn't come completely from within our own selves. The people/object/thing outside plays a bigger role than our inner self. When someone gives you a confident speech, it is your choice to feel motivated or not. So, I think it's the subconscious mind that plays the role in implementation.
Now I'm not a professional in these things nor am I an advisor so- This is based COMPLETELY based on MY observations and behaviors and some books I've read.
