I was abused physically, emotionally, verbally, narcissistically for 10 years: Can I get a divorce?

Yes, you certainly can.  Colorado is what is called a "no-fault divorce" state.  This means that the only necessary grounds are that the marriage is "irretrievably broken."  I would hope you believe that.  The bigger question is are you still being abused?  Or do you think you would be abused further if you file for divorce?  If so, you can file a motion for a temporary civil protection order in which you file paper work, individually or through a lawyer, explaining what has occurred in the past and why you think it will continue.  The court would set an "ex parte" hearing, being that your husband does not have to have notice of the hearing.  Based upon what you state, it is highly likely that the court will grant a temporary civil protection order.  The court will set a further hearing which will require your husband to have notice.  At that hearing, you will have to present evidence that unless the protection order is made permanent, the likelihood is that the abuse will continue.    I hope you will take steps to remain safe.  You should consult with an attorney or at least contact the police or sheriff if further abuse occurs.  Please take care of your self and try to stay self.  Abusers usually get worse, even if promising to stop abusing.