There is this trend in the tech industry of forcing and fabricating positivity as if it were a magic potion that would suddenly make everything alright. I find that disguising of faking emotions is one of the most toxic and ineffective things a Human being can do.
Its okay to have a bad day, its okay not to use the term "awesome" when things are difficult, its okay to feel failure and let it sink in temporarily.
In the workplace, not fully accepting bad moments and failure is counter productive as it is a form of inaction by itself. Success and improvement are an inevitable result of countless tentatives and failures, they are not supposed to feel good, joyful or cool. Bad days are supposed to feel bad, failure is designed to feel that way so that we want to take action and get away from that place as fast as possible.