I usually have a minimum of 15-20 hours a week JUST with meetings. And I can't just tell people I refuse to go to these. And then I also have my own tasks to do

I usually have a minimum of 15-20 hours a week JUST with meetings. And I can't just tell people I refuse to go to these. And then I also have my own tasks to do. I really have no clue how many people I see claim working 15 hrs total a week when that's already the absolute bare minimum for me.