I agree, I think if you feel it is something you need to do, then you should do it. Unfortunately, you might want to consider that it's been too long and you may not get to file an official police report. I still think that if you feel you should try, then you absolutely should. I filed for a restraining/protective order against my ex boyfriend (after we had broken up, but it was only about 2 months after the last "big" physical altercation) and the restraining order was granted (I'm not suggesting filing for that, it might be too long since the relationship ended to file for a restraining order). When I was looking for resources to help me know what to expect, I used WomensLaw.org | Home just so I knew what the possible outcomes would be for my state. Of course, this looks like it is just for the US and I'm not sure if you are where I am or in another country.

Do you have any photos, items of clothing, journal entries, or a police report/incident report from before? I'm just trying to think of anything that may help you when presenting this to the police. When I went to court I actually had a couple of pictures of bruises and bloody clothes taken the day after I was beat up. At that point I wasn't even consciously thinking about going to court, but for some reason I knew I wanted documentation of it happening in case I needed someone to believe me. I'm really glad I was able to provide those.

Also, the night I eventually left my abusive ex was when he was arrested after grabbing me on the street when we were in a verbal argument. He ended up being convicted of battery on an officer, public intox, and a couple other charges. This helped me in court as well because it showed a pattern of abuse and crime (was not his first arrest either).

Even if you don't have anything to take to the police except your story, I think if you feel strongly then you should pursue it. I hope my list (though I know its not a comprehensive one) might help you in some way. There are probably resources online that would give you some other examples of "proof" that these things happened. I hate that we so often have to "prove" these things, but that is another discussion altogether...

Good luck with everything! I hope no matter what happens that you are able to get some sort of closure, or the beginning of closure. That seems to be one of the most difficult parts of overcoming the damage from an abusive relationship.