Akrasia, "lacking command" or "weakness" is a lack of self-control or acting against one's better judgement.

If you struggle with motivation, it's likely the problem is not intrinsic to you, but instead you haven't found work that is interesting.

If you find your work boring, you should be doing something else.

Some examples:

Steve Jobs

I'm convinced that the only thing that kept me going was that I loved what I did. You've got to find what you love. And that is as true for your work as it is for your lovers. Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do

Bill Thurston

My attention is more inward than that of most people: it can be resistant to being captured and directed externally. Exercises like these mathematics lessons were excruciatingly boring and painful (whether or not I had "mastered the material"). I used to think my wandering attention and difficulty in completing assignments was a defect, but now I realize my "laziness" is a feature, not a bug

Scott Alexander

I’ve written a few hundred to a few thousand words pretty much every day for the past ten years. But as I’ve said before, this has taken exactly zero willpower. It’s more that I can’t stop even if I want to.

Paul Graham

Now I know a number of people who do great work, and it's the same with all of them. They have little discipline. They're all terrible procrastinators and find it almost impossible to make themselves do anything they're not interested in. One still hasn't sent out his half of the thank-you notes from his wedding, four years ago. Another has 26,000 emails in her inbox.