I broke the law for the first time and I am regretful.
How did you break the law?
I was speeding in my car, but it isn't something I'm proud of.
Speeding isn't a capital crime that you can't get beyond, but it's still incorrect to break the law. Follow the posted limits on the road or you will end up without a driver's license eventually.
There are more terrible crimes in the world besides speeding.
This is true, there are a lot more heinous crimes to commit. You broke the law and your remorse just means you feel guilty. Try not to do it again for your own safety and for others.