^Want to make bill paying easier? Tell yourself, "Oooh, I HATE MATH! IT'S SO ANNOYING! STUPID HOMEWORK!"
And treat it like homework. Because that's all it is.
What those numbers *represent* to you is what causes the extra stress.
Make them represent something else. It's the same procedure you have to go through, whether it was homework or paying bills. So just say "I HATE MATH HOMEWORK!" and do it. Weird as it sounds, it helps.^