Maybe don't drink coffee? Or replace coffee with some other caffeine source. Or find a less bitter coffee. There are a lot more varieties of coffee that aren't

Maybe don't drink coffee? Or replace coffee with some other caffeine source. Or find a less bitter coffee. There are a lot more varieties of coffee that aren't mainstream that don't have the bitterness of mass produced stuff. I detest coffee/food snobbery but have found some lighter roasts that aren't as bitter. Or try different brewing methods.