Ask HN: As an indi-Hacker, How have you manage to stay disciplined and focused?

I have been working as a remote developer since one and a half years now. I find myself working very little some days and a lot some days. Since working from home, I often end up watching some random YouTube clip or reading some stupid article which will never do me any good or sometimes running errands take over my work hours. Have you faced this problem? Did you try anything that helped you tackle this problem?