I agree the word is overused. My ex had many narcissistic traits and behaviours but, after five years of trying to heal from many years with him, I still question whether there's a difference between narcissistic and just plain old abuse.
My Women's Aid support worker said all abusers are narcissists. I'm still not sure that is the case. Are all narcissists abusers? The people I know with strong narcissistic tendencies have certainly been abusive in one way or another. I don't think it's ever black and white.
@Hunnshine your ex sounds no different to any other abuser - blaming you, stopping you from doing something for yourself and the rest.
but I am just so sick of feeling like I am the psycho because of what he says
Be aware that he will say anything to make you feel insecure, unhappy, anything to lower your self esteem, to have you doubting yourself. This stems from his own insecurity. You need to realise that much of what he ever said to you may well not be true, the big things as well as the little; they can be very good liars and very believable.
I I think it’s only when you take yourself away from something you kind of realise.
When you are with them they keep your mind filled with them intentionally so that you don't have the headspace to see their behaviour for what it is. With freedom comes clarity and then you can start to heal 
Since we split it is like he has disappeared off the face of the earth.
Be grateful! But be aware that he might be back and feeling that you need punished. Never rest on your laurels with these fuckers.