Desecration of the Sabbath and observance of other commandments

I don’t understand how it makes sense that I’m on the computer on Shabbat when I’m wearing a tzitzit and a kippah, after having studied and studying Torah for several years and I’m a believer, who studies, prays three prayers a day, tries to work on the fear of God, and yet because I was diagnosed with depression, I’m throwing away keeping Shabbat.
Does the rabbi have any advice regarding keeping Shabbat and what I should do in this situation?