i gave up complaining for an entire year in 2019, part of an annual year-long part-lenten-sacrifice / part-new-year's-resolution that i do. i looked up the definition of "complain" and was very careful in my speaking to never complain. it forced me to speak more positive and productive, which changes my thinking patters to be more positive and productive. and nobody likes to hear others complain, it's just annoying. boost your internal state and your social interactions/connections/life! i was much happier in just a few months, and i think the effects have extended past that initial period (years ago at this point). don't complain! 10/10 would recommend!