Do I have to keep the Commandments

This video will explain the commandments you do NOT have to keep.
This video will explain in the simpliest form using scripture, who you'd have to kill to be saved

Wait! there is over 600+ Commandments?
Are you telling me I have to keep them all?
What about the other requirements?
I thought I only had to keep the 10 commandments!
What exactly does the bible say about the Old Testament vs The New Testament?
We arent under the law anymore right?