Some people find it easier to concentrate in a library, shared workspace, or quiet cafe than in their own home. A change of surroundings can also introduce distractions. Have you experimented with working from different places, did it affect your concentration?
Does Changing Your Work Environment Affect Your Concentration?
Yes, it does. I don't like moving my work station at my workplace. Once I do, I find it very difficult to settle down. At home, I'll never leave my study when working. If I do, my daughter won't let me rest.