Wednesday was the anniversary of the shooting in Tucson that put a bullet through my head and killed six of my constituents. That date is now when I make my annual resolutions.

Many may look at me and see mostly what I have lost. I struggle to speak, my eyesight's not great, my right arm and leg are paralyzed, and I left a job I loved representing southern Arizona in Congress.

But three years ago, dispatched to an almost-certain death by an assassin's bullet, I was allowed the opportunity for a new life. I had planned to spend my 40s continuing my public service and starting a family. I thought that by fighting for the people I cared about and loving those close to me, I could leave the world a better place. And that would be enough.

Instead, I've spent the past three years learning how to talk again, how to walk again. I had to learn to sign my name with my left hand. It's gritty, painful, frustrating work, every day. Rehab is endlessly repetitive. And it's never easy, because once you've mastered some movement or action or word, no matter how small, you move on to the next. You never rest.

I asked myself: If simply completing a normal day requires so much work, how would I ever be able to fulfill a larger purpose? The killing of children at the school in Sandy Hook a little over a year ago gave me my answer. It shocked me, it motivated me and, frankly, it showed me a path.

After that day, my husband and I pledged to make it our mission to change laws and reduce gun violence in a way that was consistent with our moderate beliefs and our identities as proud gun owners. We knew it wouldn't be easy, that special interests were arrayed against us, that congressional dysfunction was an enemy.

Predictably, Washington disappointed us during the first year of our work with the organization we began — Americans for Responsible Solutions. Many of you were outraged at the failure of the Senate to pass the background checks bill, and so was I.

But I continue to be inspired by my fellow Americans. By any measure, they're with us. They know gun violence is a complex problem. No one law will make it go away.

We're not daunted. We know that the gun lobby, which makes money by preventing sensible change, relies on dramatic disappointments to wound us, reduce our power, push us back on our heels.

Our fight is a lot more like my rehab. Every day, we must wake up resolved and determined. We'll pay attention to the details and look for opportunities for progress, even when the pace is slow. Some progress may seem small, and we might wonder if the impact is enough, when the need is so urgent.

But every day we will recruit a few more allies, talk to a few more elected officials, convince a few more voters. Some days the steps will come easily; we'll feel the wind at our backs. Other times our knees will buckle. We'll tire of the burden. I know this feeling. But we'll persist.

We can get tough and win elections. We'll support our allies. And those who stood in the way will face a powerful advocacy community standing between them and re-election. I know that after the next elections, candidates won't wonder if common-sense gun policies can win elections; trust me, like Gov.-elect Terry McAuliffe of Virginia, they'll know that the answer is yes.

We will seize on consensus where it exists, on solutions big or small. We will fight for every inch, because that means saving lives. I've seen grit overcome paralysis. My resolution today is that Congress achieve the same. How? Step by step: Enhance enforcement by passing a law making gun trafficking a serious crime with stiff penalties. Make it illegal for all stalkers and all domestic abusers to buy guns. Extend mental health resources into schools and communities, so the dangerously mentally ill find it easier to receive treatment than to buy firearms. And even as we lay the groundwork for expanding background checks, pass strong incentives for states to ensure that the background-check system contains the records of the most dangerous and violent among us.

This past year, I have achieved something big that I've not spoken of until now. Countless hours of physical therapy — and the talents of the medical community — have brought me new movement in my right arm. It's fractional progress, and it took a long time, but my arm moves when I tell it to. Three years ago, I did not imagine my arm would move again. For so many days, it did not. I did exercise after exercise, day after day, until it did. I'm committed to my rehab and I'm committed to my country, and my resolution, standing with the vast majority of Americans who know we can and must be safer, is to cede no ground to those who would convince us the path is too steep, or we too weak.

Gabrielle Giffords, a Democratic representative from Arizona from 2007 to 2012, is a founder of Americans for Responsible Solutions, which focuses on gun violence. She wrote this article for the New York Times.