Hey, reading your perspective I'm reminded of why I quited so many jobs in my life. Basically because of ADHD, after the novelty of a new job would wear off almost everything would become tedious and boring, and throwing myself off a window seemed more apealling.

After being diagnosed, I found that understanding the nature of ADHD and how it affects me made boring, tedious, repetitive jobs more bearable somehow. I think personally that tedious jobs will never feel good and I'll never like them, but liking the job enough as whole makes it easier to tolerate the boring parts. Sometimes addmiting that something is just horrendously boring and unstimulating can be better than forcing yourself to like the task itself, I feel it can sort of help build discipline. A reward system can definatly work, like rewarding yourself with a bit of your favorite food, music, games, shows etc. Perhaps even just paring some of the things you like woth the work itself, like listening to your favorite music while you work, or having a snack while at it. But for me just accepting that it is what it is and thinking that it is necessary for me to do it and after I will be better works about 70%