I'd disagree... I often feel a task is 'boring', or maybe 'complicated' and it's not that It's beneath me, it's that it feels like it'll overwhelm my ADHD brain, so I procrastinate till the last minute, at which the adrenaline makes me do the best job i ever would have anyways... but boring is why I don't do a lot of things I should...
even as a kid my biggest fear when doing anything was being 'bored'... I have a very talkative inner monologue and I guess we don't like having to talk to each other, when you're not 'bored' you're too busy to be contemplating stuff.. Probably why I also spend a lot of time needing new input from reddit or hackernews...
Though I have been meditating more, and when I found out I had ADHD at 38, meds helped greatly...
My advice for tasks like this though is set a deadline, and if you miss the deadline it's fine..but it'll put you into oh shit it's due mode, and you'll get the procrastination inspiration to finish it.
Alternately schedule on the calendar dedicated times when you'll either work on it or stare at the computer monitor and work on nothing else and no interruptions... maybe you can use a journal and free-write shit or doodle if you are doing a creative task like writing and are 'blocked' ..it sometimes helps get unblocked to just stare at a doodle as your subconscious churns..