I'm going to miss a game of league of legends
Why aren't you playing?
Better a missed game than a sore wrist
It's best not to get too into a hobby that your health suffers for it. If you think you should take a break for your health, it's a good idea to do so.
I'm not taking care of myself just because I want to play a game.  It's not healthy!
I'm glad you've realized this and are taking steps to change.  I hope it works out for you!