As someone who also plays chess online I think you have the causality wrong. You obsess way to much over your online rating causing your mood to worsen when you

As someone who also plays chess online I think you have the causality wrong. You obsess way to much over your online rating causing your mood to worsen when you are on a losing streak. Big rating swings happens everybody and is mostly the result of chance. Stop obsessing about it if you can and your mood will improve.